M21.73
Non-billableUnequal limb length (acquired), ulna and radius
Unequal limb length (acquired), ulna and radius
This is a header/category code. For billing purposes, use a more specific child code from the list below.
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)
- acquired deformities of fingers or toes (M20.-)
- coxa plana (M91.2)
Child Codes (5)
M21.731Unequal limb length (acquired), right ulna
M21.732Unequal limb length (acquired), left ulna
M21.733Unequal limb length (acquired), right radius
M21.734Unequal limb length (acquired), left radius
M21.739Unequal limb length (acquired), unspecified ulna and radius
Also Known As / Clinical Terms
Frequently Asked Questions
What is the ICD-10 code for unequal limb length (acquired), ulna and radius?
The ICD-10-CM code for unequal limb length (acquired), ulna and radius is M21.73. The full clinical description is "Unequal limb length (acquired), ulna and radius". M21.73 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code M21.73 mean?
ICD-10-CM code M21.73 represents "Unequal limb length (acquired), ulna and radius". 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 M21.73 a billable code?
No, M21.73 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 5 child codes under M21.73.
What chapter is M21.73 in?
M21.73 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M21.73?
M21.73 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).
What are the subcategories under M21.73?
M21.73 has 5 child codes, including: M21.731 (Unequal limb length (acquired), right ulna), M21.732 (Unequal limb length (acquired), left ulna), M21.733 (Unequal limb length (acquired), right radius), M21.734 (Unequal limb length (acquired), left radius), and 1 more.
What are the UMLS CUIs for M21.73?
M21.73 is linked to 1 UMLS Concept Unique Identifier: C2894530. 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.