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M1A.011 vs M1A.012

M1A.011 (Idiopathic chronic gout, right shoulder) compared with M1A.012 (Idiopathic chronic gout, left shoulder), from the official CMS tabular data. M1A.011 and M1A.012 code the same condition on opposite sides.

Relationship

Review

Laterality relationship

M1A.011
Right
Idiopathic chronic gout, right shoulder
M1A.012
Left
Idiopathic chronic gout, left shoulder

Same condition; these differ only in which side is documented.

These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.

Source: ICD-10-CM tabular list (laterality variant derived from the code title)

Can these codes be reported together?

Same condition, opposite side. M1A.011 and M1A.012 name the same condition on opposite sides of the body.

Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.

Side by side

M1A.011Idiopathic chronic gout, right shoulderM1A.012Idiopathic chronic gout, left shoulder
Billing statusNon-billable header

Report instead: M1A.0110, M1A.0111

Non-billable header

Report instead: M1A.0120, M1A.0121

ClassificationM00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)M00-M99 — Diseases of the Musculoskeletal System and Connective Tissue (M00-M99)
DefinitionIdiopathic chronic gout, right shoulder is a non-billable ICD-10-CM category code (M1A.011).Idiopathic chronic gout, left shoulder is a non-billable ICD-10-CM category code (M1A.012).
7th characterThe appropriate 7th character is to be added to each code from category M1AThe appropriate 7th character is to be added to each code from category M1A
Use additional code
code to identify:
Autonomic neuropathy in diseases classified elsewhere (G99.0)
Calculus of urinary tract in diseases classified elsewhere (N22)
code to identify:
Autonomic neuropathy in diseases classified elsewhere (G99.0)
Calculus of urinary tract in diseases classified elsewhere (N22)

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources