ICD-10-CM 2027
ICD-10 code for traumatic arthropathy
From the official ICD-10-CM alphabetic index entry “Arthropathy › traumatic”. Page updated September 29, 2026.
About coding traumatic arthropathy
The ICD-10-CM code for traumatic arthropathy is M12.50 (Traumatic arthropathy, unspecified site). The official index lists 11 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on M12.50.
Within M12.5, choose M12.50 (unspecified site) only when documentation doesn't support a more specific option: shoulder (M12.51), elbow (M12.52), wrist (M12.53), hand (M12.54), hip (M12.55), knee (M12.56), ankle and foot (M12.57), other specified site (M12.58) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 553 (Bone Diseases and Arthropathies with MCC, relative weight 1.2494) and DRG 554 (Bone Diseases and Arthropathies without MCC, relative weight 0.8331), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
More specific traumatic arthropathy codes (official index)
- ankle M12.57 — Traumatic arthropathy, ankle and foot
- elbow M12.52 — Traumatic arthropathy, elbow
- foot joint M12.57 — Traumatic arthropathy, ankle and foot
- hand joint M12.54 — Traumatic arthropathy, hand
- hip M12.55 — Traumatic arthropathy, hip
- knee M12.56 — Traumatic arthropathy, knee
- multiple site M12.59 — Traumatic arthropathy, multiple sites
- shoulder M12.51 — Traumatic arthropathy, shoulder
- specified joint NEC M12.58 — Traumatic arthropathy, other specified site
- vertebrae M12.58 — Traumatic arthropathy, other specified site
- wrist M12.53 — Traumatic arthropathy, wrist
Common questions about traumatic arthropathy ICD-10 codes
What is the ICD-10 code for traumatic arthropathy?
- M12.50 — Traumatic arthropathy, unspecified site. More specific codes apply when the documentation supports them: M12.57, M12.52, M12.57, M12.54 and others below.
What is the ICD-10 code for ankle traumatic arthropathy?
- M12.57 — Traumatic arthropathy, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for elbow traumatic arthropathy?
- M12.52 — Traumatic arthropathy, elbow (header code; choose a more specific subcode).
What is the ICD-10 code for foot joint traumatic arthropathy?
- M12.57 — Traumatic arthropathy, ankle and foot (header code; choose a more specific subcode).
What is the ICD-10 code for hand joint traumatic arthropathy?
- M12.54 — Traumatic arthropathy, hand (header code; choose a more specific subcode).
What is the ICD-10 code for hip traumatic arthropathy?
- M12.55 — Traumatic arthropathy, hip (header code; choose a more specific subcode).
What is the ICD-10 code for knee traumatic arthropathy?
- M12.56 — Traumatic arthropathy, knee (header code; choose a more specific subcode).
Is M12.50 billable?
- Yes. M12.50 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M12.50 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M12.50 as a principal diagnosis.
Is M12.50 a CC or MCC?
- No. M12.50 is neither a CC nor an MCC under MS-DRG v44.0.