A31.9 MYCOBACTERIAL INFECTION, UNSPECIFIED

Code Information

Diagnosis Code: A31.9

Short Description: Mycobacterial infection, unspecified

Long Description: Mycobacterial infection, unspecified

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Other bacterial diseases (A30-A49)
      • Infection due to other mycobacteria (A31)
        • A31.9 Mycobacterial infection, unspecified

Code Version: 2017 ICD-10-CM

Diagnostic Related Group(s)

The code A31.9 is grouped in the following Diagnostic Related Group(s) (MS-DRG v32.0)
  • Other Infectious And Parasitic Diseases Diagnoses With Mcc (867)
  • Other Infectious And Parasitic Diseases Diagnoses With Cc (868)
  • Other Infectious And Parasitic Diseases Diagnoses Without Cc/mcc (869)

References to Index of Diseases and Injuries

The code A31.9 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Atypical mycobacterial infection NOS
    • Mycobacteriosis NOS

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A31.9 Right Arrow 031.9 Mycobacterial dis NOS
This ICD-10 to ICD-9 data is based on the 2015 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

No. ICD-10 Code ICD-10 Description
1 A31 Infection due to other mycobacteria
2 A31.0 Pulmonary mycobacterial infection
3 A31.1 Cutaneous mycobacterial infection
4 A31.2 Disseminated mycobacterium avium-intracellulare complex (DMAC)
5 A31.8 Other mycobacterial infections



This page was last updated on: 1/1/2017