M21.80
BillableOther specified acquired deformities of unspecified limb
Other specified acquired deformities of unspecified limb
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(4)
Also Known As / Clinical Terms(91)
SNOMED CT
- Scapula alata17211005
- Winged scapula17211005
- Winging of scapula17211005
- Absence of bone in arm249738000
- Absence of bone of upper limb249738000
- Short arm249739008
- Proportionate short arms249743007
- Large arm249744001
- Angulation of arm249746004
- Large leg249781002
- Rotation of lower limb249784005
- Rotational deformity of lower limb249784005
- Short leg249786007
- Proportionate short legs249789000
- Inverted champagne bottle legs249828003
- Internal rotation of lower limb278290006
- Internal rotational deformity of lower limb278290006
- External rotation of lower limb278291005
- External rotational deformity of leg278291005
- Finding of size of upper limb298742007
- Observation of size of upper limb298742007
- Small arm298743002
- Small upper limb298743002
- Hypertrophy of arm298745009
- Hypertrophy of upper limb298745009
- Long arm298746005
- Long upper limb298746005
- Finding of proportion of upper limb298748006
- Observation of proportion of upper limb298748006
- Proportionate long arms298749003
- Small leg299221002
- Long leg299222009
- Finding of proportion of lower limb299224005
- Observation of proportion of lower limb299224005
- Finding of size of leg366557000
- Size of leg - finding366557000
- Bowing of upper limb449713008
- Bowing deformity of lower limb609380008
- Hypertrophy of leg1268319002
- Hypertrophy of lower extremity1268319002
- Hypertrophy of lower limb1268319002
- Proportionate bilateral long legs149811000146104
- Proportionate bilateral long lower limbs149811000146104
- Winged left scapula15745561000119102
- Winged right scapula15745601000119102
Clinical Terms
- External rotation of lower limb
- Internal rotational deformity of lower limb
- Short leg
- Hypertrophy of upper limb
- Long leg
- Observation of size of upper limb
- Hypertrophy of leg
- Hypertrophy of lower limb
- Winging of scapula
- Hypertrophy of arm
- Angulation of arm
- Small leg
- Winged right scapula
- Finding of proportion of lower limb
- Bowing deformity of lower limb
- Scapula alata
- Long arm
- Small arm
- Small upper limb
- Observation of proportion of upper limb
- Proportionate long arms
- Hypertrophy of lower extremity
- Size of leg - finding
- Proportionate bilateral long lower limbs
- Rotation of lower limb
- Proportionate short legs
- Absence of bone of upper limb
- Bowing of upper limb
- Large leg
- Winged scapula
- Finding of proportion of upper limb
- Internal rotation of lower limb
- Finding of size of upper limb
- Long upper limb
- Finding of size of leg
- Winged left scapula
- Large arm
- Absence of bone in arm
- Observation of proportion of lower limb
- Proportionate short arms
- External rotational deformity of leg
- Short arm
- Proportionate bilateral long legs
- Rotational deformity of lower limb
- Inverted champagne bottle legs
Frequently Asked Questions
What is the ICD-10 code for other specified acquired deformities of unspecified limb?
The ICD-10-CM code for other specified acquired deformities of unspecified limb is M21.80. The full clinical description is "Other specified acquired deformities of unspecified limb". M21.80 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code M21.80 mean?
ICD-10-CM code M21.80 represents “Other specified acquired deformities of unspecified limb”. 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 M21.80 a billable code?
Yes, M21.80 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is M21.80 in?
M21.80 is in Chapter 13: Diseases of the Musculoskeletal System and Connective Tissue (codes M00-M99).
What codes cannot be used with M21.80?
M21.80 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 SNOMED CT codes does M21.80 map to?
M21.80 maps to 29 SNOMED CT concepts: 249738000, 249746004, 609380008, 449713008, 278291005, and 24 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for M21.80?
M21.80 is linked to 1 UMLS Concept Unique Identifier: C2894539. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does M21.80 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other specified acquired deformities of unspecified limb 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 M21.80?
There is no direct ICD-11 mapping available for M21.80 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.