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ICD-10-CM Current in FY 2027

M20.01

Mallet finger

Release
FY 2027
Effective
Official source (opens in a new tab)

Hierarchy

Where M20.01 sits in the official hierarchy. Each level is the code it is classified under.

  1. M20 Acquired deformities of fingers and toes
  2. M20.0 Parent Deformity of finger(s)
  3. M20.01 This code Mallet finger

Official Coding Notes

Reproduced verbatim from the FY 2027 ICD-10-CM files. Notes labelled as inherited are declared on a parent code and apply here too.

Excludes1

clubbing of fingers ( R68.3 )

Inherited from M20.0 — Deformity of finger(s)

Excludes1

acquired absence of fingers and toes ( Z89 .-)

Inherited from M20 — Acquired deformities of fingers and toes

Excludes1

palmar fascial fibromatosis [Dupuytren] ( M72.0 )

Inherited from M20.0 — Deformity of finger(s)

Excludes1

congenital absence of fingers and toes ( Q71.3- , Q72.3- )

Inherited from M20 — Acquired deformities of fingers and toes

Excludes1

trigger finger ( M65.3 )

Inherited from M20.0 — Deformity of finger(s)

Excludes1

congenital deformities and malformations of fingers and toes ( Q66 .-, Q68-Q70, Q74 .-)

Inherited from M20 — Acquired deformities of fingers and toes

More Specific Codes

3 codes under M20.01

Version History

How M20.01 appears in each release imported from the official files, newest first.

  1. FY 2027 Effective

    Current

    Mallet finger

  2. FY 2026 Effective

    Unchanged

    Mallet finger

Related Codes

Other codes under M20.0

Data Source

Code information on this page is derived from the FY 2027 ICD-10-CM files published by CDC NCHS and CMS.

Release
FY 2027
Effective
Source file
icd10cm-code-descriptions-2027.zip

Official ICD-10-CM source files (opens in a new tab)

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