M21.159
BillableVarus deformity, not elsewhere classified, unspecified
Varus deformity, not elsewhere classified, unspecified
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
- •acquired deformities of fingers or toesM20
- •coxa planaM91.2
Related Codes(2)
Also Known As / Clinical Terms(6)
Clinical Terms
- Coxa vara
- Varus deformity, not elsewhere classified, unspecified hip
- Varus deformity of hip
Frequently Asked Questions
What is the ICD-10 code for varus deformity, not elsewhere classified, unspecified?
The ICD-10-CM code for varus deformity, not elsewhere classified, unspecified is M21.159. The full clinical description is "Varus deformity, not elsewhere classified, unspecified". M21.159 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M21.159 mean?
ICD-10-CM code M21.159 represents “Varus deformity, not elsewhere classified, unspecified”. 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 M21.159 a billable code?
Yes, M21.159 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M21.159 in?
M21.159 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M21.159?
M21.159 has Excludes1 notes indicating codes that cannot be used together with it, including: acquired absence of limb (Z89.-); congenital absence of limbs (Q71-Q73); congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74); and 2 more.
What SNOMED CT codes does M21.159 map to?
M21.159 maps to 1 SNOMED CT concept: 1179328008. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M21.159?
M21.159 is linked to 1 UMLS Concept Unique Identifier: C6006651. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M21.159 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like varus deformity, not elsewhere classified, unspecified 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 M21.159?
There is no direct ICD-11 mapping available for M21.159 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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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.