MCMedicalCodingSoftware
A31.8

A31.8: Other mycobacterial infections

Billable / specific codeICD-10-CM

A31.8 is a billable, specific ICD-10-CM code for other mycobacterial infections. It is valid for submission on a claim.

Check A31.8 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above A31.8

Not part of this code, but both may be coded when both are present.

Written on A31: Infection due to other mycobacteria

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

A31.8 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

  • A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax

Alphabetic index entries that lead here

  • Lymphadenitis›mycobacterial
  • Mycobacterium, mycobacterial›chelonei
  • Mycobacterium, mycobacterial›extrapulmonary systemic
  • Mycobacterium, mycobacterial›fortuitum
  • Mycobacterium, mycobacterial›kakaferifu
  • Mycobacterium, mycobacterial›kasongo
  • Mycobacterium, mycobacterial›scrofulaceum
  • Mycobacterium, mycobacterial›simiae
  • Mycobacterium, mycobacterial›systemic, extrapulmonary
  • Mycobacterium, mycobacterial›szulgai
  • Mycobacterium, mycobacterial›terrae
  • Mycobacterium, mycobacterial›triviale

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A31

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.