M20.31
BillableHallux varus (acquired), right foot
Hallux varus (acquired), right foot
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 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)
Also Known As / Clinical Terms
SNOMED CT
- Acquired hallux varus16123003
- Acquired hallux malleus45636002
- Acquired hammer deformity of great toe45636002
- Acquired hammer toe of first toe45636002
- Clawing of hallux45636002
- Clawing of the big toe45636002
- HT - Hammer toe45636002
- Acquired forefoot adductus203589007
- Acquired forefoot invertus203589007
- Hallux varus274147008
- Varus deformity of great toe274147008
- Varus deformities of feet275345001
- Acquired varus deformity of toe314038003
- Acquired bilateral hallux malleus15714041000119100
- Acquired hallux malleus of bilateral great toes15714041000119100
- Acquired hallux malleus of both great toes15714041000119100
- Bilateral acquired hallux malleus of great toes15714041000119100
- Acquired bilateral hallux varus15713921000119108
- Acquired hallux varus of bilateral great toes15713921000119108
- Acquired hallux varus of both great toes15713921000119108
- Bilateral acquired hallux varus of great toes15713921000119108
- Acquired hallux limitus of bilateral great toes15636171000119102
- Bilateral acquired hallux limitus of great toes15636171000119102
- Acquired hallux malleus of left foot1075101000119107
- Acquired hallux malleus of left great toe1075101000119107
- Acquired hallux malleus of right foot1075091000119102
- Acquired hallux malleus of right great toe1075091000119102
- Acquired left hallux varus446311000124106
- Acquired right hallux varus446351000124107
- Bilateral flexion deformity of feet15935581000119100
- Flexion deformity of joint of bilateral feet15935581000119100
- Flexion deformity of joint of both feet15935581000119100
Frequently Asked Questions
What is the ICD-10 code for hallux varus (acquired), right foot?
The ICD-10-CM code for hallux varus (acquired), right foot is M20.31. The full clinical description is "Hallux varus (acquired), right foot". M20.31 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M20.31 mean?
ICD-10-CM code M20.31 represents "Hallux varus (acquired), right foot". It is classified under Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue and is a billable/specific code that can be used on a claim.
Is M20.31 a billable code?
Yes, M20.31 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M20.31 in?
M20.31 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M20.31?
M20.31 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 SNOMED CT codes does M20.31 map to?
M20.31 maps to 14 SNOMED CT concepts: 15714041000119100, 15713921000119108, 203589007, 15636171000119102, 45636002, and 9 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M20.31?
M20.31 is linked to 1 UMLS Concept Unique Identifier: C2894448. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
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.