AutoICD API

M20.1

Non-billable

Hallux valgus (acquired)

Hallux valgus (acquired)

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

Parent Code

M20

Child Codes

3

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)
  • bunion (M21.6-)

Child Codes (3)

M20.10

Hallux valgus (acquired), unspecified foot

BillableM20.11

Hallux valgus (acquired), right foot

BillableM20.12

Hallux valgus (acquired), left foot

Billable

Also Known As / Clinical Terms

UMLS

Frequently Asked Questions

What is ICD-10 code M20.1?

ICD-10-CM code M20.1 represents "Hallux valgus (acquired)". It is a non-billable header code — use a more specific child code for billing purposes.

Is M20.1 a billable code?

No, M20.1 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under M20.1.

What chapter is M20.1 in?

M20.1 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).

What codes cannot be used with M20.1?

M20.1 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 M20.1?

M20.1 has 3 child codes, including: M20.10 (Hallux valgus (acquired), unspecified foot), M20.11 (Hallux valgus (acquired), right foot), M20.12 (Hallux valgus (acquired), left foot).

What are the UMLS CUIs for M20.1?

M20.1 is linked to 1 UMLS Concept Unique Identifier: C0158458. 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.