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Q66.89

Q66.89: Other specified congenital deformities of feet

Billable / specific codeICD-10-CMPOA exempt

Q66.89 is a billable, specific ICD-10-CM code for other specified congenital deformities of feet. It is valid for submission on a claim.

Check Q66.89 with the rest of the claim: free scrubber

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

  • Congenital asymmetric talipes
  • Congenital clubfoot NOS
  • Congenital talipes NOS
  • Congenital tarsal coalition
  • Hammer toe, congenital

Excludes1 inherited from the categories above Q66.89

A category’s note binds every code beneath it.

Written on Q66: Congenital deformities of feet

  • reduction defects of feet (Q72.-)
  • valgus deformities (acquired) (M21.0-)
  • varus deformities (acquired) (M21.1-)

Other codes that can never be billed with Q66.89

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • M20Acquired deformities of fingers and toes
  • M21.5Acquired clawhand, clubhand, clawfoot and clubfoot

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Clawfoot(congenital)
  • Clawtoe(congenital)
  • Clubfoot(congenital)
  • Talipes(congenital)
  • Coalition›calcaneo-scaphoid
  • Coalition›tarsal
  • Hammer toe NEC›congenital
  • Overlapping toe›congenital(fifth toe)
  • Pes›adductus
  • Talipes›asymmetric
  • Talipes›calcaneus
  • Talipes›equinus

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under Q66.8

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.