M21.06
Non-billableValgus deformity, not elsewhere classified, knee
Valgus deformity, not elsewhere classified, knee
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Genu valgum
- Knock knee
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)
- acquired deformities of fingers or toes (M20.-)
- coxa plana (M91.2)
Child Codes (3)
Also Known As / Clinical Terms
UMLS
- Genu ValgaC0576093
- Genu ValgasC0576093
- Genu ValgumC0576093
- Genu ValgumsC0576093
- Genu valgaC0576093
- Genu valgumC0576093
- Genu valgusC0576093
- Genua valgaC0576093
- Genua valgumC0576093
- Knee joint valgus deformityC0576093
- Knee joint valgus deformity (finding)C0576093
- Knees, KnockC0576093
- Knock KneeC0576093
- Knock KneesC0576093
- Knock kneeC0576093
- Knock kneesC0576093
- Knock-kneeC0576093
- Knock-kneedC0576093
- Knock-kneesC0576093
- Valga, GenuC0576093
- Valgas, GenuC0576093
- genu valgumC0576093
- genu valgusC0576093
- genus valgusC0576093
- knee knockedC0576093
- knees knockC0576093
- knees knockedC0576093
- knock kneeC0576093
- knock kneedC0576093
- knock kneesC0576093
- knock-kneeC0576093
- knock-kneedC0576093
- knock-kneesC0576093
- Valgus deformity, not elsewhere classified, kneeC2894462
- Valgus deformity, not elsewhere classified, unspecified kneeC2894462
Frequently Asked Questions
What is the ICD-10 code for valgus deformity, not elsewhere classified, knee?
The ICD-10-CM code for valgus deformity, not elsewhere classified, knee is M21.06. The full clinical description is "Valgus deformity, not elsewhere classified, knee". M21.06 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M21.06 mean?
ICD-10-CM code M21.06 represents "Valgus deformity, not elsewhere classified, knee". 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 M21.06 a billable code?
No, M21.06 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 M21.06.
What chapter is M21.06 in?
M21.06 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M21.06?
M21.06 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 are the subcategories under M21.06?
M21.06 has 3 child codes, including: M21.061 (Valgus deformity, not elsewhere classified, right knee), M21.062 (Valgus deformity, not elsewhere classified, left knee), M21.069 (Valgus deformity, not elsewhere classified, unspecified knee).
What are the UMLS CUIs for M21.06?
M21.06 is linked to 2 UMLS Concept Unique Identifiers: C0576093, C2894462. 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.