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ICD-10-CM 2027

ICD-10 code for Battey disease

A31.0

Pulmonary mycobacterial infection

✓ Billable / specificCC — complication/comorbidity

From the official ICD-10-CM alphabetic index entry “Disease, diseased › Battey”. Page updated September 29, 2026.

About coding Battey disease

The ICD-10-CM code for Battey disease is A31.0 (Pulmonary mycobacterial infection).

Within A31 (infection due to other mycobacteria), A31.0 is specifically for pulmonary mycobacterial infection. Related codes cover cutaneous mycobacterial infection (A31.1), disseminated mycobacterium avium-intracellulare complex (DMAC) (A31.2), other mycobacterial infections (A31.8) and mycobacterial infection, unspecified (A31.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 177 (Respiratory Infections and Inflammations with MCC, relative weight 1.6092), DRG 178 (Respiratory Infections and Inflammations with CC, relative weight 0.9744) and DRG 179 (Respiratory Infections and Inflammations without CC/MCC, relative weight 0.7345), in MDC 04 (Diseases and Disorders of the Respiratory System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

Common questions about Battey disease ICD-10 codes

What is the ICD-10 code for Battey disease?

A31.0 — Pulmonary mycobacterial infection.

Is A31.0 billable?

Yes. A31.0 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can A31.0 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict A31.0 as a principal diagnosis.

Is A31.0 a CC or MCC?

A31.0 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.