AutoICD API

M20

Non-billable

Acquired 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.

Status

Non-billable / Header

Block

M20-M25

Child Codes

7

Coding Notes

Excludes 1

Codes that cannot be used together with this code (mutual exclusion)

  • 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.-)

Excludes 2

Conditions not included here, but the patient may have both

  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
  • joints of the spine (M40-M54)

Child Codes (7)

M20.0

Deformity of finger(s)

M20.1

Hallux valgus (acquired)

M20.2

Hallux rigidus

M20.3

Hallux varus (acquired)

M20.4

Other hammer toe(s) (acquired)

M20.5

Other deformities of toe(s) (acquired)

M20.6

Acquired deformities of toe(s), unspecified

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code M20?

ICD-10-CM code M20 represents "Acquired deformities of fingers and toes". It 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.

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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.