M12

Non-billable

Other and unspecified arthropathy

M12 is the ICD-10-CM code for Other and unspecified arthropathy. It is a non-billable category code — use a more specific child code such as M12.0 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Subcodes
8
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Excludes1 — not coded here

  • arthrosis (M15-M19)
  • cricoarytenoid arthropathy (J38.7)

Frequently asked questions

What is ICD-10 code M12?
M12 is the ICD-10-CM code for "Other and unspecified arthropathy". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M12 a billable code?
No — M12 is a non-billable header code. Use a more specific child code (such as M12.0) for billing.
What are the subcodes of M12?
M12 has 8 more specific child codes, including M12.0, M12.1, M12.2.
What is excluded from M12?
Excludes1 (not coded here): arthrosis (M15-M19); cricoarytenoid arthropathy (J38.7).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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