A31.2 Disseminated mycobacterium avium-intracellulare complex (DMAC)

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• MAC sepsis

Applies from A31 Infection due to other mycobacteria

Excludes2 (not included here)

• leprosy (A30.-)
• tuberculosis (A15-A19)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 6 — Opportunistic Infections
• CMS-HCC V22: HCC 6 — Opportunistic Infections
• RxHCC V08: HCC 5 — Opportunistic Infections
• ESRD V24: HCC 6

MS-DRG index

Defines the logic of DRG(s) 867-869 in MDC 18.

Approximate ICD-9-CM (GEMs)

• 031.2 Disseminated due to other mycobacteria

Diagnosis Index entries for A31.2

• Complex › disseminated mycobacterium avium- intracellulare (DMAC)
• DMAC (disseminated mycobacterium avium- intracellulare complex)

Nearby codes

• A31 Infection due to other mycobacteria
• A31.0 Pulmonary mycobacterial infection
• A31.1 Cutaneous mycobacterial infection
• A31.2 Disseminated mycobacterium avium-intracellulare complex (DMAC) (this code)
• A31.8 Other mycobacterial infections
• A31.9 Mycobacterial infection, unspecified