TABLE 6C - INVALID DIAGNOSIS CODES
Diagnosis Code	Description	CC	MDC	MS-DRG
D13.9	Benign neoplasm of ill-defined sites within the digestive system	N	06	393, 394, 395
D48.1	Neoplasm of uncertain behavior of connective and other soft tissue	N	08	564, 565, 566
E20.8	Other hypoparathyroidism	N	10	643, 644, 645
""			15	791(1), 793(1)
E79.8	Other disorders of purine and pyrimidine metabolism	C	10	642
E88.81	Metabolic syndrome	N	10	642
G20	Parkinson's disease	N	01	056, 057
G37.8	Other specified demyelinating diseases of central nervous system	C	01	058, 059, 060
H36	Retinal disorders in diseases classified elsewhere	N	02	124, 125
I20.8	Other forms of angina pectoris	N	05	311
I24.8	Other forms of acute ischemic heart disease	C	05	311
I47.1	Supraventricular tachycardia	C	05	308, 309, 310
J15.6	Pneumonia due to other Gram-negative bacteria	M	04	177, 178, 179
""			15	791(1), 793(1)
""			25	974(2), 975(2), 976(2)
K35.20	Acute appendicitis with generalized peritonitis, without abscess	C	06	371, 372, 373
K35.21	Acute appendicitis with generalized peritonitis, with abscess	M	06	371, 372, 373
N04.2	Nephrotic syndrome with diffuse membranous glomerulonephritis	C	11	698, 699, 700
""			25	977(2)
N06.2	Isolated proteinuria with diffuse membranous glomerulonephritis	C	11	698, 699, 700
""			25	977(2)
O90.4	Postpartum acute kidney failure	M	14	769, 776
Q44.7	Other congenital malformations of liver	C	07	441, 442, 443
Q75.0	Craniosynostosis	N	08	564, 565, 566
Y07.01^	Husband, perpetrator of maltreatment and neglect	N		
Y07.02^	Wife, perpetrator of maltreatment and neglect	N		
Y07.03^	Male partner, perpetrator of maltreatment and neglect	N		
Y07.04^	Female partner, perpetrator of maltreatment and neglect	N		
Z05.8	Observation and evaluation of newborn for other specified suspected condition ruled out	N	15	795(3)
""			23	951
Z29.8	Encounter for other specified prophylactic measures	N	23	951
Z59.1^	Inadequate housing	N	23	951
Z83.71	Family history of colonic polyps	N	23	951
Z91.14^	Patient's other noncompliance with medication regimen	N	23	951
Z91.15^	Patient's noncompliance with renal dialysis	N	23	951
Z91.A4	Caregiver's other noncompliance with patient's medication regimen	N	23	951
Z91.A5	Caregiver's noncompliance with patient's renal dialysis	N	23	951
Z91.A9	Caregiver's noncompliance with patient's other medical treatment and regimen	N	23	951

	Notes:
	(^)-These codes were invalid effective April 1, 2023.
	(1)-On newborn major problem list
	(2)-In combination with SDX of HIV
	(3)-On 'Only Secondary Diagnosis' list