A31.8 Other mycobacterial infections

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

Applies from A31 Infection due to other mycobacteria

Excludes2 (not included here)

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

MS-DRG index

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

Approximate ICD-9-CM (GEMs)

• 031.8 Other specified mycobacterial diseases

Diagnosis Index entries for A31.8

• Arthritis, arthritic (acute) (chronic) (nonpyogenic) (subacute) › due to or associated with › mycobacteria
• Lymphadenitis › mycobacterial
• Mycobacterium, mycobacterial (infection) › atypical › specified site NEC
• Mycobacterium, mycobacterial (infection) › chelonei
• Mycobacterium, mycobacterial (infection) › extrapulmonary systemic
• Mycobacterium, mycobacterial (infection) › fortuitum
• Mycobacterium, mycobacterial (infection) › kakaferifu
• Mycobacterium, mycobacterial (infection) › kasongo
• Mycobacterium, mycobacterial (infection) › scrofulaceum
• Mycobacterium, mycobacterial (infection) › simiae
• Mycobacterium, mycobacterial (infection) › systemic, extrapulmonary
• Mycobacterium, mycobacterial (infection) › szulgai
• Mycobacterium, mycobacterial (infection) › terrae
• Mycobacterium, mycobacterial (infection) › triviale
• Mycobacterium, mycobacterial (infection) › xenopi

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)
• A31.8 Other mycobacterial infections (this code)
• A31.9 Mycobacterial infection, unspecified