| Dx | CC/MCC | Exclusions | Description |
| J1520 | MCC | 0113:129 codes | Pneumonia due to staphylococcus, unspecified |
| J15211 | MCC | 0113:129 codes | Pneumonia due to Methicillin susceptible Staphylococcus aureus |
| J15212 | MCC | 0113:129 codes | Pneumonia due to Methicillin resistant Staphylococcus aureus |
| J1529 | MCC | 0113:129 codes | Pneumonia due to other staphylococcus |
| J153 | MCC | 0113:129 codes | Pneumonia due to streptococcus, group B |
| J154 | MCC | 0113:129 codes | Pneumonia due to other streptococci |
| J155 | MCC | 0113:129 codes | Pneumonia due to Escherichia coli |
| J1561 | MCC | 1033:125 codes | Pneumonia due to Acinetobacter baumannii |
| J1569 | MCC | 1033:125 codes | Pneumonia due to other Gram-negative bacteria |
| J157 | MCC | 0113:129 codes | Pneumonia due to Mycoplasma pneumoniae |
| J158 | MCC | 0113:129 codes | Pneumonia due to other specified bacteria |
| J159 | MCC | 0113:129 codes | Unspecified bacterial pneumonia |
| J160 | MCC | 0113:129 codes | Chlamydial pneumonia |
| J168 | MCC | 0113:129 codes | Pneumonia due to other specified infectious organisms |
| J17 | MCC | 0113:129 codes | Pneumonia in diseases classified elsewhere |
| J180 | MCC | 0113:129 codes | Bronchopneumonia, unspecified organism |
| J181 | MCC | 0113:129 codes | Lobar pneumonia, unspecified organism |
| J182 | CC | 1034:12 codes | Hypostatic pneumonia, unspecified organism |
| J188 | MCC | 0113:129 codes | Other pneumonia, unspecified organism |
| J189 | MCC | 0113:129 codes | Pneumonia, unspecified organism |
| J210 | CC | 1035:1 code | Acute bronchiolitis due to respiratory syncytial virus |
| J211 | CC | 1036:14 codes | Acute bronchiolitis due to human metapneumovirus |
| J218 | CC | 1036:14 codes | Acute bronchiolitis due to other specified organisms |
| J219 | CC | 1036:14 codes | Acute bronchiolitis, unspecified |
| J36 | CC | 1037:9 codes | Peritonsillar abscess |
| J390 | CC | 1038:10 codes | Retropharyngeal and parapharyngeal abscess |
| J391 | CC | 1038:10 codes | Other abscess of pharynx |
| J440 | CC | 1039:6 codes | Chronic obstructive pulmonary disease with (acute) lower respiratory infection |
| J441 | CC | 1039:6 codes | Chronic obstructive pulmonary disease with (acute) exacerbation |
| J4521 | CC | 1040:29 codes | Mild intermittent asthma with (acute) exacerbation |
| J4522 | CC | 1040:29 codes | Mild intermittent asthma with status asthmaticus |
| J4531 | CC | 1040:29 codes | Mild persistent asthma with (acute) exacerbation |
| J4532 | CC | 1040:29 codes | Mild persistent asthma with status asthmaticus |
| J4541 | CC | 1040:29 codes | Moderate persistent asthma with (acute) exacerbation |
| J4542 | CC | 1040:29 codes | Moderate persistent asthma with status asthmaticus |
| J4551 | CC | 1040:29 codes | Severe persistent asthma with (acute) exacerbation |
| J4552 | CC | 1040:29 codes | Severe persistent asthma with status asthmaticus |
| J45901 | CC | 1040:29 codes | Unspecified asthma with (acute) exacerbation |
| J45902 | CC | 1040:29 codes | Unspecified asthma with status asthmaticus |
| J470 | CC | 1041:21 codes | Bronchiectasis with acute lower respiratory infection |
| J471 | CC | 1041:21 codes | Bronchiectasis with (acute) exacerbation |
| J677 | CC | 1042:124 codes | Air conditioner and humidifier lung |
| J678 | CC | 1043:125 codes | Hypersensitivity pneumonitis due to other organic dusts |
| J679 | CC | 1043:125 codes | Hypersensitivity pneumonitis due to unspecified organic dust |
| J680 | CC | 1043:125 codes | Bronchitis and pneumonitis due to chemicals, gases, fumes and vapors |
| J681 | MCC | 1043:125 codes | Pulmonary edema due to chemicals, gases, fumes and vapors |
| J690 | MCC | 1042:124 codes | Pneumonitis due to inhalation of food and vomit |
| J691 | MCC | 1043:125 codes | Pneumonitis due to inhalation of oils and essences |
| J698 | MCC | 1042:124 codes | Pneumonitis due to inhalation of other solids and liquids |
| J700 | CC | 1042:124 codes | Acute pulmonary manifestations due to radiation |
| J701 | CC | 1042:124 codes | Chronic and other pulmonary manifestations due to radiation |
| J80 | MCC | 1044:22 codes | Acute respiratory distress syndrome |
| J810 | MCC | 1045:33 codes | Acute pulmonary edema |
| J811 | CC | 1034:12 codes | Chronic pulmonary edema |
| J8281 | CC | 1046:4 codes | Chronic eosinophilic pneumonia |
| J8282 | CC | 1046:4 codes | Acute eosinophilic pneumonia |
| J8283 | CC | 1046:4 codes | Eosinophilic asthma |
| J8289 | CC | 1046:4 codes | Other pulmonary eosinophilia, not elsewhere classified |
| J8401 | CC | 1047:90 codes | Alveolar proteinosis |
| J8402 | CC | 1047:90 codes | Pulmonary alveolar microlithiasis |
| J8403 | CC | 1047:90 codes | Idiopathic pulmonary hemosiderosis |
| J8409 | CC | 1047:90 codes | Other alveolar and parieto-alveolar conditions |
| J84114 | CC | 1047:90 codes | Acute interstitial pneumonitis |
| J84116 | CC | 1047:90 codes | Cryptogenic organizing pneumonia |
| J84117 | CC | 1047:90 codes | Desquamative interstitial pneumonia |
| J842 | CC | 1047:90 codes | Lymphoid interstitial pneumonia |
| J8481 | MCC | 1047:90 codes | Lymphangioleiomyomatosis |
| J8482 | CC | 1047:90 codes | Adult pulmonary Langerhans cell histiocytosis |
| J8483 | MCC | 1048:78 codes | Surfactant mutations of the lung |
| J84841 | MCC | 1048:78 codes | Neuroendocrine cell hyperplasia of infancy |
| J84842 | MCC | 1048:78 codes | Pulmonary interstitial glycogenosis |
| J84843 | MCC | 1048:78 codes | Alveolar capillary dysplasia with vein misalignment |
| J84848 | MCC | 1048:78 codes | Other interstitial lung diseases of childhood |
| J849 | CC | 1047:90 codes | Interstitial pulmonary disease, unspecified |
| J850 | MCC | 1049:22 codes | Gangrene and necrosis of lung |
| J851 | MCC | 1049:22 codes | Abscess of lung with pneumonia |
| J852 | MCC | 1049:22 codes | Abscess of lung without pneumonia |
| J853 | MCC | 1050:9 codes | Abscess of mediastinum |
| J860 | MCC | 1051:12 codes | Pyothorax with fistula |
| J869 | MCC | 1051:12 codes | Pyothorax without fistula |
| J90 | CC | 1052:29 codes | Pleural effusion, not elsewhere classified |
| J910 | CC | 1053:24 codes | Malignant pleural effusion |
| J918 | CC | 1052:29 codes | Pleural effusion in other conditions classified elsewhere |
| J930 | MCC | 1054:18 codes | Spontaneous tension pneumothorax |
| J9311 | CC | 1054:18 codes | Primary spontaneous pneumothorax |
| J9312 | CC | 1054:18 codes | Secondary spontaneous pneumothorax |
| J9381 | CC | 1054:18 codes | Chronic pneumothorax |
| J9382 | CC | 1054:18 codes | Other air leak |
| J9383 | CC | 1054:18 codes | Other pneumothorax |
| J939 | CC | 1054:18 codes | Pneumothorax, unspecified |
| J940 | CC | 1052:29 codes | Chylous effusion |
| J942 | CC | 1052:29 codes | Hemothorax |
| J948 | CC | 1055:1 code | Other specified pleural conditions |
| J9500 | CC | 1056:12 codes | Unspecified tracheostomy complication |
| J9501 | CC | 1056:12 codes | Hemorrhage from tracheostomy stoma |
| J9502 | CC | 1056:12 codes | Infection of tracheostomy stoma |
| J9503 | CC | 1056:12 codes | Malfunction of tracheostomy stoma |
| J9504 | CC | 1056:12 codes | Tracheo-esophageal fistula following tracheostomy |
| J9509 | CC | 1056:12 codes | Other tracheostomy complication |
| J951 | MCC | 1057:13 codes | Acute pulmonary insufficiency following thoracic surgery |
| J952 | MCC | 1058:9 codes | Acute pulmonary insufficiency following nonthoracic surgery |
| J953 | MCC | 1059:12 codes | Chronic pulmonary insufficiency following surgery |
| J954 | CC | 1060:54 codes | Chemical pneumonitis due to anesthesia |
| J955 | CC | 1060:54 codes | Postprocedural subglottic stenosis |
| J9561 | CC | 1061:76 codes | Intraoperative hemorrhage and hematoma of a respiratory system organ or structure complicating a respiratory system procedure |
| J9562 | CC | 1061:76 codes | Intraoperative hemorrhage and hematoma of a respiratory system organ or structure complicating other procedure |
| J9571 | CC | 0569:76 codes | Accidental puncture and laceration of a respiratory system organ or structure during a respiratory system procedure |
| J9572 | CC | 0569:76 codes | Accidental puncture and laceration of a respiratory system organ or structure during other procedure |
| J95811 | CC | 1054:18 codes | Postprocedural pneumothorax |
| J95812 | CC | 1054:18 codes | Postprocedural air leak |
| J95821 | MCC | 1057:13 codes | Acute postprocedural respiratory failure |
| J95822 | MCC | 1057:13 codes | Acute and chronic postprocedural respiratory failure |
| J95830 | CC | 1061:76 codes | Postprocedural hemorrhage of a respiratory system organ or structure following a respiratory system procedure |
| J95831 | CC | 1061:76 codes | Postprocedural hemorrhage of a respiratory system organ or structure following other procedure |
| J9584 | CC | 1060:54 codes | Transfusion-related acute lung injury (TRALI) |
| J95850 | CC | 1062:3 codes | Mechanical complication of respirator |
| J95851 | CC | 1063:53 codes | Ventilator associated pneumonia |
| J95859 | CC | 1063:53 codes | Other complication of respirator [ventilator] |
| J95860 | CC | 1061:76 codes | Postprocedural hematoma of a respiratory system organ or structure following a respiratory system procedure |
| J95861 | CC | 1061:76 codes | Postprocedural hematoma of a respiratory system organ or structure following other procedure |
| J95862 | CC | 1061:76 codes | Postprocedural seroma of a respiratory system organ or structure following a respiratory system procedure |
| J95863 | CC | 1061:76 codes | Postprocedural seroma of a respiratory system organ or structure following other procedure |
| J9587 | CC | 1064:34 codes | Transfusion-associated dyspnea (TAD) |
| J9588 | CC | 1060:54 codes | Other intraoperative complications of respiratory system, not elsewhere classified |
| J9589 | CC | 1060:54 codes | Other postprocedural complications and disorders of respiratory system, not elsewhere classified |
| J9600 | MCC | 1044:22 codes | Acute respiratory failure, unspecified whether with hypoxia or hypercapnia |
| J9601 | MCC | 1044:22 codes | Acute respiratory failure with hypoxia |
| J9602 | MCC | 1044:22 codes | Acute respiratory failure with hypercapnia |
| J9610 | CC | 1044:22 codes | Chronic respiratory failure, unspecified whether with hypoxia or hypercapnia |
| J9611 | CC | 1044:22 codes | Chronic respiratory failure with hypoxia |
| J9612 | CC | 1044:22 codes | Chronic respiratory failure with hypercapnia |
| J9620 | MCC | 1044:22 codes | Acute and chronic respiratory failure, unspecified whether with hypoxia or hypercapnia |
| J9621 | MCC | 1044:22 codes | Acute and chronic respiratory failure with hypoxia |
| J9622 | MCC | 1044:22 codes | Acute and chronic respiratory failure with hypercapnia |
| J9690 | MCC | 1044:22 codes | Respiratory failure, unspecified, unspecified whether with hypoxia or hypercapnia |
| J9691 | MCC | 1044:22 codes | Respiratory failure, unspecified with hypoxia |
| J9692 | MCC | 1044:22 codes | Respiratory failure, unspecified with hypercapnia |
| J9811 | CC | 1065:10 codes | Atelectasis |
| J9819 | CC | 1065:10 codes | Other pulmonary collapse |
| J9851 | MCC | 1066:1 code | Mediastinitis |
| J9859 | MCC | 1067:1 code | Other diseases of mediastinum, not elsewhere classified |
| K0401 | CC | 1068:229 codes | Reversible pulpitis |
| K0402 | CC | 1068:229 codes | Irreversible pulpitis |
| K044 | CC | 1068:229 codes | Acute apical periodontitis of pulpal origin |
| K113 | CC | 1069:19 codes | Abscess of salivary gland |
| K114 | CC | 1069:19 codes | Fistula of salivary gland |
| K122 | CC | 1070:9 codes | Cellulitis and abscess of mouth |
| K2081 | MCC | 1071:38 codes | Other esophagitis with bleeding |
| K2091 | MCC | 1071:38 codes | Esophagitis, unspecified with bleeding |
| K2101 | MCC | 1071:38 codes | Gastro-esophageal reflux disease with esophagitis, with bleeding |
| K2210 | CC | 1072:4 codes | Ulcer of esophagus without bleeding |
| K2211 | MCC | 1073:77 codes | Ulcer of esophagus with bleeding |
| K223 | MCC | 1074:4 codes | Perforation of esophagus |
| K226 | MCC | 1075:75 codes | Gastro-esophageal laceration-hemorrhage syndrome |
| K250 | MCC | 1076:75 codes | Acute gastric ulcer with hemorrhage |
| K251 | MCC | 1076:75 codes | Acute gastric ulcer with perforation |
| K252 | MCC | 1076:75 codes | Acute gastric ulcer with both hemorrhage and perforation |
| K253 | CC | 1076:75 codes | Acute gastric ulcer without hemorrhage or perforation |
| K254 | MCC | 1076:75 codes | Chronic or unspecified gastric ulcer with hemorrhage |
| K255 | MCC | 1076:75 codes | Chronic or unspecified gastric ulcer with perforation |
| K256 | MCC | 1076:75 codes | Chronic or unspecified gastric ulcer with both hemorrhage and perforation |
| K260 | MCC | 1077:76 codes | Acute duodenal ulcer with hemorrhage |
| K261 | MCC | 1077:76 codes | Acute duodenal ulcer with perforation |
| K262 | MCC | 1077:76 codes | Acute duodenal ulcer with both hemorrhage and perforation |
| K263 | CC | 1078:71 codes | Acute duodenal ulcer without hemorrhage or perforation |
| K264 | MCC | 1077:76 codes | Chronic or unspecified duodenal ulcer with hemorrhage |
| K265 | MCC | 1077:76 codes | Chronic or unspecified duodenal ulcer with perforation |
| K266 | MCC | 1077:76 codes | Chronic or unspecified duodenal ulcer with both hemorrhage and perforation |
| K270 | MCC | 1077:76 codes | Acute peptic ulcer, site unspecified, with hemorrhage |
| K271 | MCC | 1077:76 codes | Acute peptic ulcer, site unspecified, with perforation |
| K272 | MCC | 1077:76 codes | Acute peptic ulcer, site unspecified, with both hemorrhage and perforation |
| K273 | CC | 1077:76 codes | Acute peptic ulcer, site unspecified, without hemorrhage or perforation |
| K274 | MCC | 1077:76 codes | Chronic or unspecified peptic ulcer, site unspecified, with hemorrhage |
| K275 | MCC | 1077:76 codes | Chronic or unspecified peptic ulcer, site unspecified, with perforation |
| K276 | MCC | 1077:76 codes | Chronic or unspecified peptic ulcer, site unspecified, with both hemorrhage and perforation |
| K280 | MCC | 1076:75 codes | Acute gastrojejunal ulcer with hemorrhage |
| K281 | MCC | 1076:75 codes | Acute gastrojejunal ulcer with perforation |
| K282 | MCC | 1076:75 codes | Acute gastrojejunal ulcer with both hemorrhage and perforation |
| K283 | CC | 1076:75 codes | Acute gastrojejunal ulcer without hemorrhage or perforation |
| K284 | MCC | 1076:75 codes | Chronic or unspecified gastrojejunal ulcer with hemorrhage |
| K285 | MCC | 1076:75 codes | Chronic or unspecified gastrojejunal ulcer with perforation |
| K286 | MCC | 1076:75 codes | Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation |
| K2901 | MCC | 1079:72 codes | Acute gastritis with bleeding |
| K2921 | MCC | 1079:72 codes | Alcoholic gastritis with bleeding |
| K2931 | MCC | 1079:72 codes | Chronic superficial gastritis with bleeding |
| K2941 | MCC | 1079:72 codes | Chronic atrophic gastritis with bleeding |
| K2951 | MCC | 1079:72 codes | Unspecified chronic gastritis with bleeding |
| K2961 | MCC | 1079:72 codes | Other gastritis with bleeding |
| K2971 | MCC | 1079:72 codes | Gastritis, unspecified, with bleeding |
| K2981 | MCC | 1079:72 codes | Duodenitis with bleeding |
| K2991 | MCC | 1079:72 codes | Gastroduodenitis, unspecified, with bleeding |
| K310 | CC | 1080:1 code | Acute dilatation of stomach |
| K311 | CC | 1081:19 codes | Adult hypertrophic pyloric stenosis |
| K315 | CC | 1082:15 codes | Obstruction of duodenum |
| K316 | CC | 1083:10 codes | Fistula of stomach and duodenum |
| K31811 | MCC | 1079:72 codes | Angiodysplasia of stomach and duodenum with bleeding |
| K3182 | MCC | 1084:73 codes | Dieulafoy lesion (hemorrhagic) of stomach and duodenum |
| K35200 | CC | 1085:24 codes | Acute appendicitis with generalized peritonitis, without perforation or abscess |
| K35201 | CC | 1085:24 codes | Acute appendicitis with generalized peritonitis, with perforation, without abscess |
| K35209 | CC | 1085:24 codes | Acute appendicitis with generalized peritonitis, without abscess, unspecified as to perforation |
| K35210 | MCC | 1085:24 codes | Acute appendicitis with generalized peritonitis, without perforation, with abscess |
| K35211 | MCC | 1085:24 codes | Acute appendicitis with generalized peritonitis, with perforation and abscess |
| K35219 | MCC | 1085:24 codes | Acute appendicitis with generalized peritonitis, with abscess, unspecified as to perforation |
| K3530 | CC | 1085:24 codes | Acute appendicitis with localized peritonitis, without perforation or gangrene |
| K3531 | CC | 1085:24 codes | Acute appendicitis with localized peritonitis and gangrene, without perforation |
| K3532 | MCC | 1085:24 codes | Acute appendicitis with perforation, localized peritonitis, and gangrene, without abscess |
| K3533 | MCC | 1085:24 codes | Acute appendicitis with perforation, localized peritonitis, and gangrene, with abscess |
| K3580 | CC | 1085:24 codes | Unspecified acute appendicitis |
| K35890 | CC | 1085:24 codes | Other acute appendicitis without perforation or gangrene |
| K35891 | CC | 1085:24 codes | Other acute appendicitis without perforation, with gangrene |
| K4000 | CC | 1086:18 codes | Bilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent |
| K4001 | CC | 1086:18 codes | Bilateral inguinal hernia, with obstruction, without gangrene, recurrent |
| K4010 | MCC | 1086:18 codes | Bilateral inguinal hernia, with gangrene, not specified as recurrent |
| K4011 | MCC | 1086:18 codes | Bilateral inguinal hernia, with gangrene, recurrent |
| K4030 | CC | 1086:18 codes | Unilateral inguinal hernia, with obstruction, without gangrene, not specified as recurrent |
| K4031 | CC | 1086:18 codes | Unilateral inguinal hernia, with obstruction, without gangrene, recurrent |
| K4040 | MCC | 1086:18 codes | Unilateral inguinal hernia, with gangrene, not specified as recurrent |
| K4041 | MCC | 1086:18 codes | Unilateral inguinal hernia, with gangrene, recurrent |
| K4100 | CC | 1087:18 codes | Bilateral femoral hernia, with obstruction, without gangrene, not specified as recurrent |
| K4101 | CC | 1087:18 codes | Bilateral femoral hernia, with obstruction, without gangrene, recurrent |
| K4110 | MCC | 1088:14 codes | Bilateral femoral hernia, with gangrene, not specified as recurrent |
| K4111 | MCC | 1088:14 codes | Bilateral femoral hernia, with gangrene, recurrent |
| K4130 | CC | 1087:18 codes | Unilateral femoral hernia, with obstruction, without gangrene, not specified as recurrent |
| K4131 | CC | 1087:18 codes | Unilateral femoral hernia, with obstruction, without gangrene, recurrent |
| K4140 | MCC | 1088:14 codes | Unilateral femoral hernia, with gangrene, not specified as recurrent |
| K4141 | MCC | 1088:14 codes | Unilateral femoral hernia, with gangrene, recurrent |
| K420 | CC | 1089:11 codes | Umbilical hernia with obstruction, without gangrene |
| K421 | MCC | 1090:19 codes | Umbilical hernia with gangrene |
| K430 | CC | 1089:11 codes | Incisional hernia with obstruction, without gangrene |
| K431 | MCC | 1090:19 codes | Incisional hernia with gangrene |
| K433 | CC | 1089:11 codes | Parastomal hernia with obstruction, without gangrene |
| K434 | MCC | 1090:19 codes | Parastomal hernia with gangrene |
| K436 | CC | 1089:11 codes | Other and unspecified ventral hernia with obstruction, without gangrene |
| K437 | MCC | 1090:19 codes | Other and unspecified ventral hernia with gangrene |
| K440 | CC | 1091:6 codes | Diaphragmatic hernia with obstruction, without gangrene |
| K441 | MCC | 1091:6 codes | Diaphragmatic hernia with gangrene |
| K450 | CC | 1092:45 codes | Other specified abdominal hernia with obstruction, without gangrene |
| K451 | MCC | 1093:48 codes | Other specified abdominal hernia with gangrene |
| K460 | CC | 1092:45 codes | Unspecified abdominal hernia with obstruction, without gangrene |
| K461 | MCC | 1093:48 codes | Unspecified abdominal hernia with gangrene |
| K5000 | CC | 1094:77 codes | Crohn's disease of small intestine without complications |
| K50011 | CC | 1094:77 codes | Crohn's disease of small intestine with rectal bleeding |
| K50012 | CC | 1094:77 codes | Crohn's disease of small intestine with intestinal obstruction |
| K50013 | CC | 1094:77 codes | Crohn's disease of small intestine with fistula |
| K50014 | CC | 1094:77 codes | Crohn's disease of small intestine with abscess |
| K50018 | CC | 1094:77 codes | Crohn's disease of small intestine with other complication |
| K50019 | CC | 1094:77 codes | Crohn's disease of small intestine with unspecified complications |
| K5010 | CC | 1094:77 codes | Crohn's disease of large intestine without complications |
| K50111 | CC | 1094:77 codes | Crohn's disease of large intestine with rectal bleeding |
| K50112 | CC | 1094:77 codes | Crohn's disease of large intestine with intestinal obstruction |
| K50113 | CC | 1094:77 codes | Crohn's disease of large intestine with fistula |
| K50114 | CC | 1094:77 codes | Crohn's disease of large intestine with abscess |
| K50118 | CC | 1094:77 codes | Crohn's disease of large intestine with other complication |
| K50119 | CC | 1094:77 codes | Crohn's disease of large intestine with unspecified complications |
| K5080 | CC | 1094:77 codes | Crohn's disease of both small and large intestine without complications |
| K50811 | CC | 1094:77 codes | Crohn's disease of both small and large intestine with rectal bleeding |
| K50812 | CC | 1094:77 codes | Crohn's disease of both small and large intestine with intestinal obstruction |
| K50813 | CC | 1094:77 codes | Crohn's disease of both small and large intestine with fistula |
| K50814 | CC | 1094:77 codes | Crohn's disease of both small and large intestine with abscess |
| K50818 | CC | 1094:77 codes | Crohn's disease of both small and large intestine with other complication |
| K50819 | CC | 1094:77 codes | Crohn's disease of both small and large intestine with unspecified complications |
| K5090 | CC | 1095:28 codes | Crohn's disease, unspecified, without complications |
| K50911 | CC | 1095:28 codes | Crohn's disease, unspecified, with rectal bleeding |
| K50912 | CC | 1095:28 codes | Crohn's disease, unspecified, with intestinal obstruction |
| K50913 | CC | 1095:28 codes | Crohn's disease, unspecified, with fistula |
| K50914 | CC | 1095:28 codes | Crohn's disease, unspecified, with abscess |
| K50918 | CC | 1095:28 codes | Crohn's disease, unspecified, with other complication |
| K50919 | CC | 1095:28 codes | Crohn's disease, unspecified, with unspecified complications |
| K5100 | CC | 1094:77 codes | Ulcerative (chronic) pancolitis without complications |
| K51011 | CC | 1094:77 codes | Ulcerative (chronic) pancolitis with rectal bleeding |
| K51012 | CC | 1094:77 codes | Ulcerative (chronic) pancolitis with intestinal obstruction |
| K51013 | CC | 1094:77 codes | Ulcerative (chronic) pancolitis with fistula |
| K51014 | CC | 1094:77 codes | Ulcerative (chronic) pancolitis with abscess |
| K51018 | CC | 1094:77 codes | Ulcerative (chronic) pancolitis with other complication |
| K51019 | CC | 1094:77 codes | Ulcerative (chronic) pancolitis with unspecified complications |
| K5120 | CC | 1094:77 codes | Ulcerative (chronic) proctitis without complications |
| K51211 | CC | 1094:77 codes | Ulcerative (chronic) proctitis with rectal bleeding |
| K51212 | CC | 1094:77 codes | Ulcerative (chronic) proctitis with intestinal obstruction |
| K51213 | CC | 1094:77 codes | Ulcerative (chronic) proctitis with fistula |
| K51214 | CC | 1094:77 codes | Ulcerative (chronic) proctitis with abscess |
| K51218 | CC | 1094:77 codes | Ulcerative (chronic) proctitis with other complication |
| K51219 | CC | 1094:77 codes | Ulcerative (chronic) proctitis with unspecified complications |
| K5130 | CC | 1094:77 codes | Ulcerative (chronic) rectosigmoiditis without complications |
| K51311 | CC | 1094:77 codes | Ulcerative (chronic) rectosigmoiditis with rectal bleeding |
| K51312 | CC | 1094:77 codes | Ulcerative (chronic) rectosigmoiditis with intestinal obstruction |
| K51313 | CC | 1094:77 codes | Ulcerative (chronic) rectosigmoiditis with fistula |
| K51314 | CC | 1094:77 codes | Ulcerative (chronic) rectosigmoiditis with abscess |
| K51318 | CC | 1094:77 codes | Ulcerative (chronic) rectosigmoiditis with other complication |
| K51319 | CC | 1094:77 codes | Ulcerative (chronic) rectosigmoiditis with unspecified complications |
| K5140 | CC | 1094:77 codes | Inflammatory polyps of colon without complications |
| K51411 | CC | 1094:77 codes | Inflammatory polyps of colon with rectal bleeding |
| K51412 | CC | 1094:77 codes | Inflammatory polyps of colon with intestinal obstruction |
| K51413 | CC | 1094:77 codes | Inflammatory polyps of colon with fistula |
| K51414 | CC | 1094:77 codes | Inflammatory polyps of colon with abscess |
| K51418 | CC | 1094:77 codes | Inflammatory polyps of colon with other complication |
| K51419 | CC | 1094:77 codes | Inflammatory polyps of colon with unspecified complications |
| K5150 | CC | 1094:77 codes | Left sided colitis without complications |
| K51511 | CC | 1094:77 codes | Left sided colitis with rectal bleeding |
| K51512 | CC | 1094:77 codes | Left sided colitis with intestinal obstruction |
| K51513 | CC | 1094:77 codes | Left sided colitis with fistula |
| K51514 | CC | 1094:77 codes | Left sided colitis with abscess |
| K51518 | CC | 1094:77 codes | Left sided colitis with other complication |
| K51519 | CC | 1094:77 codes | Left sided colitis with unspecified complications |
| K5180 | CC | 1094:77 codes | Other ulcerative colitis without complications |
| K51811 | CC | 1094:77 codes | Other ulcerative colitis with rectal bleeding |
| K51812 | CC | 1094:77 codes | Other ulcerative colitis with intestinal obstruction |
| K51813 | CC | 1094:77 codes | Other ulcerative colitis with fistula |
| K51814 | CC | 1094:77 codes | Other ulcerative colitis with abscess |
| K51818 | CC | 1094:77 codes | Other ulcerative colitis with other complication |
| K51819 | CC | 1094:77 codes | Other ulcerative colitis with unspecified complications |
| K5190 | CC | 1096:49 codes | Ulcerative colitis, unspecified, without complications |
| K51911 | CC | 1096:49 codes | Ulcerative colitis, unspecified with rectal bleeding |
| K51912 | CC | 1096:49 codes | Ulcerative colitis, unspecified with intestinal obstruction |
| K51913 | CC | 1096:49 codes | Ulcerative colitis, unspecified with fistula |
| K51914 | CC | 1096:49 codes | Ulcerative colitis, unspecified with abscess |
| K51918 | CC | 1096:49 codes | Ulcerative colitis, unspecified with other complication |
| K51919 | CC | 1096:49 codes | Ulcerative colitis, unspecified with unspecified complications |
| K520 | CC | 1097:1 code | Gastroenteritis and colitis due to radiation |
| K521 | CC | 1098:1 code | Toxic gastroenteritis and colitis |
| K55011 | MCC | 1099:23 codes | Focal (segmental) acute (reversible) ischemia of small intestine |
| K55012 | MCC | 1099:23 codes | Diffuse acute (reversible) ischemia of small intestine |
| K55019 | MCC | 1099:23 codes | Acute (reversible) ischemia of small intestine, extent unspecified |
| K55021 | MCC | 1099:23 codes | Focal (segmental) acute infarction of small intestine |
| K55022 | MCC | 1099:23 codes | Diffuse acute infarction of small intestine |
| K55029 | MCC | 1099:23 codes | Acute infarction of small intestine, extent unspecified |
| K55031 | MCC | 1099:23 codes | Focal (segmental) acute (reversible) ischemia of large intestine |
| K55032 | MCC | 1099:23 codes | Diffuse acute (reversible) ischemia of large intestine |
| K55039 | MCC | 1099:23 codes | Acute (reversible) ischemia of large intestine, extent unspecified |
| K55041 | MCC | 1099:23 codes | Focal (segmental) acute infarction of large intestine |
| K55042 | MCC | 1099:23 codes | Diffuse acute infarction of large intestine |
| K55049 | MCC | 1099:23 codes | Acute infarction of large intestine, extent unspecified |
| K55051 | MCC | 1099:23 codes | Focal (segmental) acute (reversible) ischemia of intestine, part unspecified |
| K55052 | MCC | 1099:23 codes | Diffuse acute (reversible) ischemia of intestine, part unspecified |
| K55059 | MCC | 1099:23 codes | Acute (reversible) ischemia of intestine, part and extent unspecified |
| K55061 | MCC | 1099:23 codes | Focal (segmental) acute infarction of intestine, part unspecified |
| K55062 | MCC | 1099:23 codes | Diffuse acute infarction of intestine, part unspecified |
| K55069 | MCC | 1099:23 codes | Acute infarction of intestine, part and extent unspecified |
| K551 | CC | 1100:25 codes | Chronic vascular disorders of intestine |
| K5521 | MCC | 1079:72 codes | Angiodysplasia of colon with hemorrhage |
| K5530 | MCC | 1099:23 codes | Necrotizing enterocolitis, unspecified |
| K5531 | MCC | 1099:23 codes | Stage 1 necrotizing enterocolitis |
| K5532 | MCC | 1099:23 codes | Stage 2 necrotizing enterocolitis |
| K5533 | MCC | 1099:23 codes | Stage 3 necrotizing enterocolitis |
| K558 | CC | 1100:25 codes | Other vascular disorders of intestine |
| K559 | CC | 1100:25 codes | Vascular disorder of intestine, unspecified |
| K560 | CC | 1101:29 codes | Paralytic ileus |
| K561 | CC | 1101:29 codes | Intussusception |
| K562 | MCC | 1101:29 codes | Volvulus |
| K563 | CC | 1101:29 codes | Gallstone ileus |
| K5649 | CC | 1101:29 codes | Other impaction of intestine |
| K5650 | CC | 1101:29 codes | Intestinal adhesions [bands], unspecified as to partial versus complete obstruction |
| K5651 | CC | 1101:29 codes | Intestinal adhesions [bands], with partial obstruction |
| K5652 | CC | 1101:29 codes | Intestinal adhesions [bands] with complete obstruction |
| K56600 | CC | 1101:29 codes | Partial intestinal obstruction, unspecified as to cause |
| K56601 | CC | 1101:29 codes | Complete intestinal obstruction, unspecified as to cause |
| K56609 | CC | 1101:29 codes | Unspecified intestinal obstruction, unspecified as to partial versus complete obstruction |
| K56690 | CC | 1101:29 codes | Other partial intestinal obstruction |
| K56691 | CC | 1101:29 codes | Other complete intestinal obstruction |
| K56699 | CC | 1101:29 codes | Other intestinal obstruction unspecified as to partial versus complete obstruction |
| K567 | CC | 1101:29 codes | Ileus, unspecified |
| K5700 | CC | 1102:6 codes | Diverticulitis of small intestine with perforation and abscess without bleeding |
| K5701 | MCC | 1079:72 codes | Diverticulitis of small intestine with perforation and abscess with bleeding |
| K5711 | MCC | 1079:72 codes | Diverticulosis of small intestine without perforation or abscess with bleeding |
| K5712 | CC | 1102:6 codes | Diverticulitis of small intestine without perforation or abscess without bleeding |
| K5713 | MCC | 1079:72 codes | Diverticulitis of small intestine without perforation or abscess with bleeding |
| K5720 | CC | 1103:18 codes | Diverticulitis of large intestine with perforation and abscess without bleeding |
| K5721 | MCC | 1079:72 codes | Diverticulitis of large intestine with perforation and abscess with bleeding |
| K5731 | MCC | 1079:72 codes | Diverticulosis of large intestine without perforation or abscess with bleeding |
| K5732 | CC | 1103:18 codes | Diverticulitis of large intestine without perforation or abscess without bleeding |
| K5733 | MCC | 1079:72 codes | Diverticulitis of large intestine without perforation or abscess with bleeding |
| K5740 | CC | 1103:18 codes | Diverticulitis of both small and large intestine with perforation and abscess without bleeding |
| K5741 | MCC | 1079:72 codes | Diverticulitis of both small and large intestine with perforation and abscess with bleeding |
| K5751 | MCC | 1079:72 codes | Diverticulosis of both small and large intestine without perforation or abscess with bleeding |
| K5752 | CC | 1103:18 codes | Diverticulitis of both small and large intestine without perforation or abscess without bleeding |
| K5753 | MCC | 1079:72 codes | Diverticulitis of both small and large intestine without perforation or abscess with bleeding |
| K5780 | CC | 1103:18 codes | Diverticulitis of intestine, part unspecified, with perforation and abscess without bleeding |
| K5781 | MCC | 1079:72 codes | Diverticulitis of intestine, part unspecified, with perforation and abscess with bleeding |
| K5791 | MCC | 1079:72 codes | Diverticulosis of intestine, part unspecified, without perforation or abscess with bleeding |
| K5792 | CC | 1103:18 codes | Diverticulitis of intestine, part unspecified, without perforation or abscess without bleeding |
| K5793 | MCC | 1079:72 codes | Diverticulitis of intestine, part unspecified, without perforation or abscess with bleeding |
| K592 | CC | 1104:15 codes | Neurogenic bowel, not elsewhere classified |
| K5931 | CC | 1104:15 codes | Toxic megacolon |
| K5939 | CC | 1104:15 codes | Other megacolon |
| K610 | CC | 1105:7 codes | Anal abscess |
| K611 | CC | 1105:7 codes | Rectal abscess |
| K612 | CC | 1105:7 codes | Anorectal abscess |
| K614 | CC | 1105:7 codes | Intrasphincteric abscess |
| K625 | CC | 1079:72 codes | Hemorrhage of anus and rectum |
| K626 | CC | 1106:1 code | Ulcer of anus and rectum |
| K630 | CC | 1107:1 code | Abscess of intestine |
| K631 | MCC | 1108:1 code | Perforation of intestine (nontraumatic) |
| K632 | CC | 1109:1 code | Fistula of intestine |
| K633 | CC | 1110:1 code | Ulcer of intestine |
| K6381 | MCC | 1111:73 codes | Dieulafoy lesion of intestine |
| K650 | MCC | 1112:22 codes | Generalized (acute) peritonitis |
| K651 | MCC | 1112:22 codes | Peritoneal abscess |
| K652 | MCC | 1112:22 codes | Spontaneous bacterial peritonitis |
| K653 | MCC | 1112:22 codes | Choleperitonitis |
| K654 | CC | 1112:22 codes | Sclerosing mesenteritis |
| K658 | MCC | 1112:22 codes | Other peritonitis |