ICD-10-CM 2027
ICD-10 code for AIDS
From the official ICD-10-CM alphabetic index entry “AIDS (related complex)”. Page updated September 29, 2026.
About coding AIDS
The ICD-10-CM code for AIDS is B20 (Human immunodeficiency virus [HIV] disease).
Don't report B20 together with the conditions in its Excludes1 note: asymptomatic human immunodeficiency virus [HIV] infection status (Z21), exposure to HIV virus (Z20.6) and inconclusive serologic evidence of HIV (R75).
Code first: Human immunodeficiency virus [HIV] disease complicating pregnancy, childbirth and the puerperium, if applicable (O98.7-).
Use an additional code(s) to identify all manifestations of HIV infection.
Don't confuse with (Excludes1 for B20)
Common questions about AIDS ICD-10 codes
What is the ICD-10 code for AIDS?
- B20 — Human immunodeficiency virus [HIV] disease.
Is B20 billable?
- Yes. B20 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can B20 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict B20 as a principal diagnosis.
Is B20 a CC or MCC?
- B20 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.