ICD-10 Code
International Classification of Diseases, 10th Revision
Jul 26, 2017

See: Infection due to other mycobacteria

  ICD-10 Code for Mycobacterial infection, unspecified A31.9

A31.9 is a valid1 ICD 10 diagnosis code.

A31.9 is valid for submission for HIPAA-covered transactions.

Chapter 1 Certain infectious and parasitic diseases (A00-B99)
Section A30-A49 Other bacterial diseases (A30-A49)
Category A31 Infection due to other mycobacteria

• See below for any additional coding requirements that may be necessary.

• Check for any notations, inclusions and/or exclusions that are specific to this ICD 10 code before using

1 No additional coding requirements necessary.
Inclusion Term
  • Atypical mycobacterial infection NOS
  • Mycobacteriosis NOS
See also ICD 10 code for

Related Terms to “Mycobacterial infection, unspecified”

  • Disease, diseasedSee also Syndrome
  • Mycobacterium, mycobacterial(infection) - A31.9
    • anonymous - A31.9
    • atypical - A31.9
See the 2017 ICD-10-CM Coding Guidelines.

When ICD 10 was implemented on October 1, 2015, it did not affect physicians', outpatient facilities', and hospital outpatient departments' use of CPT codes on Medicare Fee-For-Service claims. Providers should continue to use CPT codes to report these services.