A31 ICD-10-CM Code: Infection due to other mycobacteria
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
A31Infection due to other mycobacteria
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where A31 sits
- 1
Chapter 1
Certain infectious and parasitic diseases (A00-B99)
- 2
Section
Other bacterial diseases (A30-A49)
- 3
Category A31
Infection due to other mycobacteria
- 4
Code A31
Infection due to other mycobacteria
More specific choices
Codes under A31
A31 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for A31.
Code first
No “code first” instruction is listed for A31.
Use additional code
No “use additional code” instruction is listed for A31.
Excludes1
Conditions that should not be reported together with this code.
No Excludes1 note is listed for A31.
Excludes2
Conditions not included here that may be reported separately when present.
- leprosy (A30.-)
- tuberculosis (A15-A19)
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code A31 mean?
A31 is the FY 2027 U.S. ICD-10-CM code for “Infection due to other mycobacteria.”
Is A31 a billable or specific ICD-10-CM code?
No. A31 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is A31 located in ICD-10-CM?
A31 is listed in Chapter 1, Certain infectious and parasitic diseases (A00-B99), within Other bacterial diseases (A30-A49) (A30–A49), under category A31, Infection due to other mycobacteria.
What coding notes are listed for A31?
No inclusion terms are listed for A31 in this reference record. No code-first instruction is listed. No Excludes1 note is listed. Excludes2 notes: leprosy (A30.-); tuberculosis (A15-A19).
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