M20
Non-billableAcquired deformities of fingers and toes
Acquired deformities of fingers and toes
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •arthropathic psoriasisL40.5
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •compartment syndrome (traumatic)A-)T79
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •joints of the spineM40-M54
Child Codes (7)
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(1)
Frequently Asked Questions
What is the ICD-10 code for acquired deformities of fingers and toes?
The ICD-10-CM code for acquired deformities of fingers and toes is M20. The full clinical description is "Acquired deformities of fingers and toes". M20 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M20 mean?
ICD-10-CM code M20 represents “Acquired deformities of fingers and toes”. It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a non-billable header code. Use a more specific child code for billing purposes.
Is M20 a billable code?
No, M20 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 7 child codes under M20.
What chapter is M20 in?
M20 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M20?
M20 has Excludes1 notes indicating codes that cannot be used together with it, including: 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.-).
What are the subcategories under M20?
M20 has 7 child codes, including: M20.0 (Deformity of finger(s)), M20.1 (Hallux valgus (acquired)), M20.2 (Hallux rigidus), M20.3 (Hallux varus (acquired)), and 3 more.
What are the UMLS CUIs for M20?
M20 is linked to 1 UMLS Concept Unique Identifier: C0494922. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M20 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like acquired deformities of fingers and toes affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of M20?
M20 maps to the ICD-11 code: FA30.Z (Acquired deformities of fingers or toes, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.