M20 ICD-10-CM Code: Acquired deformities of fingers and toes
A clear reference for the official code description, hierarchy, and related coding information from the FY 2027 U.S. release.
Code definition
Official description
M20Acquired deformities of fingers and toes
ICD-10-CM diagnosis code · United States clinical modification
Classification
Where M20 sits
- 1
Chapter 13
Diseases of the musculoskeletal system and connective tissue (M00-M99)
- 2
Section
Other joint disorders (M20-M25)
- 3
Category M20
Acquired deformities of fingers and toes
- 4
Code M20
Acquired deformities of fingers and toes
More specific choices
Codes under M20
M20 is a non-billable category. Choose the child code that best matches the documented diagnosis.
Documentation details
Notes for this code
Inclusion terms
No inclusion terms are listed for M20.
Code first
No “code first” instruction is listed for M20.
Use additional code
No “use additional code” instruction is listed for M20.
Excludes1
Conditions that should not be reported together with this code.
- acquired absence of fingers and toes (Z89.-)
- congenital absence of fingers and toes (Q71.3-, Q72.3-)
- congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)
Excludes2
Conditions not included here that may be reported separately when present.
No Excludes2 note is listed for M20.
Transparency
Source and release
This reference is generated from Vero’s ICD-10-CM description, hierarchy, and code-note dataset. The visible content and structured data share that source.
Review the CDC/NCHS ICD-10-CM sourceCode-specific guidance
Frequently asked questions
What does ICD-10-CM code M20 mean?
M20 is the FY 2027 U.S. ICD-10-CM code for “Acquired deformities of fingers and toes.”
Is M20 a billable or specific ICD-10-CM code?
No. M20 has more specific child codes in the FY 2027 reference data. Select the code that matches the documentation and confirm the active code set and payer requirements.
Where is M20 located in ICD-10-CM?
M20 is listed in Chapter 13, Diseases of the musculoskeletal system and connective tissue (M00-M99), within Other joint disorders (M20-M25) (M20–M25), under category M20, Acquired deformities of fingers and toes.
What coding notes are listed for M20?
No inclusion terms are listed for M20 in this reference record. No code-first instruction is listed. Excludes1 notes: acquired absence of fingers and toes (Z89.-); congenital absence of fingers and toes (Q71.3-, Q72.3-); congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-). No Excludes2 note is listed.
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