All ICD10 Codes
A31Non-billable

Infection due to other mycobacteria

Certain Infectious and Parasitic Diseases·Other bacterial diseases (A30-A49)·category·FY 2026

Use a more specific code (5 billable)
A31.0Pulmonary mycobacterial infectionA31.1Cutaneous mycobacterial infectionA31.2Disseminated mycobacterium avium-intracellulare complex (DMAC)A31.8Other mycobacterial infectionsA31.9Mycobacterial infection, unspecified

CH1 Parent Instructions

Includes
  • diseases generally recognized as communicable or transmissible
Excludes1(Not coded here. Use a different code.)
  • certain localized infections - see body system-related chapters
Excludes2(Not included here. Code separately if applicable.)
  • carrier or suspected carrier of infectious disease (Z22.-)
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)
Use Additional Code
  • code to identify resistance to antimicrobial drugs (Z16.-)

Instructional Notes

Excludes2(Not included here. Code separately if applicable.)

Clinical Hierarchy

BillableHas subcodes
CH1Certain infectious and parasitic diseases (A00-B99)
A30-A49Other bacterial diseases (A30-A49)
A31Infection due to other mycobacteriaNot billable
A31.0Pulmonary mycobacterial infectionBillable
A31.1Cutaneous mycobacterial infectionBillable
A31.2Disseminated mycobacterium avium-intracellulare complex (DMAC)Billable
A31.8Other mycobacterial infectionsBillable
A31.9Mycobacterial infection, unspecifiedBillable

MS-DRG Classification

2026

No direct MS-DRG triggers identified.