TABLE 6I.1 - ADDITIONS TO THE MCC LIST
Diagnosis Code	Description
A84.81	Powassan virus disease
A84.89	Other tick-borne viral encephalitis
D57.03	Hb-SS disease with cerebral vascular involvement
D57.09	Hb-SS disease with crisis with other specified complication
D57.213	Sickle-cell/Hb-C disease with cerebral vascular involvement
D57.218	Sickle-cell/Hb-C disease with crisis with other specified complication
D57.413	Sickle-cell thalassemia, unspecified, with cerebral vascular involvement
D57.418	Sickle-cell thalassemia, unspecified, with crisis with other specified complication
D57.431	Sickle-cell thalassemia beta zero with acute chest syndrome
D57.432	Sickle-cell thalassemia beta zero with splenic sequestration
D57.433	Sickle-cell thalassemia beta zero with cerebral vascular involvement
D57.438	Sickle-cell thalassemia beta zero with crisis with other specified complication
D57.439	Sickle-cell thalassemia beta zero with crisis, unspecified
D57.451	Sickle-cell thalassemia beta plus with acute chest syndrome
D57.452	Sickle-cell thalassemia beta plus with splenic sequestration
D57.453	Sickle-cell thalassemia beta plus with cerebral vascular involvement
D57.458	Sickle-cell thalassemia beta plus with crisis with other specified complication
D57.459	Sickle-cell thalassemia beta plus with crisis, unspecified
D57.813	Other sickle-cell disorders with cerebral vascular involvement
D57.818	Other sickle-cell disorders with crisis with other specified complication
K20.81	Other esophagitis with bleeding
K20.91	Esophagitis, unspecified with bleeding
K21.01	Gastro-esophageal reflux disease with esophagitis, with bleeding
N00.A	Acute nephritic syndrome with C3 glomerulonephritis
N01.A	Rapidly progressive nephritic syndrome with C3 glomerulonephritis
P91.821	Neonatal cerebral infarction, right side of brain
P91.822	Neonatal cerebral infarction, left side of brain
P91.823	Neonatal cerebral infarction, bilateral
P91.829	Neonatal cerebral infarction, unspecified side
U07.1	COVID-19

	Notes:
