M21.5 – Acquired clawhand, clubhand, clawfoot and clubfoot
ICD-10-CM 2027 diagnosis code · Other joint disorders
ICD-10-CM code
M21.5
- Code
M21.5(claims format:M215)- Description
- Acquired clawhand, clubhand, clawfoot and clubfoot
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
- Block
- M20-M25 Other joint disorders
- Parent codes
- M21
Billable codes under M21.5
M21.5 is a header code and cannot be used on claims. Choose the most specific code:
- M21.51 – Acquired clawhandHeader (more codes below)
- M21.52 – Acquired clubhandHeader (more codes below)
- M21.53 – Acquired clawfootHeader (more codes below)
- M21.54 – Acquired clubfootHeader (more codes below)
Notes for M21.5
Excludes1 (not coded here):
- clubfoot, not specified as acquired (Q66.89)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
M21 – Other acquired deformities of limbs
Excludes1 (not coded here):
Block M20-M25
Related codes in M21
- M21.0 – Valgus deformity, not elsewhere classifiedHeader
- M21.1 – Varus deformity, not elsewhere classifiedHeader
- M21.2 – Flexion deformityHeader
- M21.3 – Wrist or foot drop (acquired)Header
- M21.4 – Flat foot [pes planus] (acquired)Header
- M21.6 – Other acquired deformities of footHeader
- M21.7 – Unequal limb length (acquired)Header
- M21.8 – Other specified acquired deformities of limbsHeader
- M21.9 – Unspecified acquired deformity of limb and handHeader
Frequently asked questions
What is ICD-10 code M21.5?
M21.5 is the ICD-10-CM code for acquired clawhand, clubhand, clawfoot and clubfoot, in the block M20-M25 (Other joint disorders).
Is M21.5 a billable code?
No. M21.5 is a header code with more specific child codes; report one of the billable codes listed above.
What category does M21.5 belong to?
It belongs to category M21 – Other acquired deformities of limbs.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.