ICD-10-CM Code M21.10
Varus deformity, not elsewhere classified, unspecified site
Billable Code
Billable codes are sufficient justification for admission to an acute care hospital when used a principal diagnosis.M21.10 is a billable ICD code used to specify a diagnosis of varus deformity, not elsewhere classified, unspecified site. A 'billable code' is detailed enough to be used to specify a medical diagnosis.
The ICD code M211 is used to code Coxa vara
Coxa vara is a deformity of the hip, whereby the angle between the head and the shaft of the femur is reduced to less than 120 degrees. This results in the leg being shortened, and the development of a limp. It is commonly caused by injury, such as a fracture. It can also occur when the bone tissue in the neck of the femur is softer than normal, causing it to bend under the weight of the body. This may either be congenital or the result of a bone disorder. The most common cause of coxa vara is either congenital or developmental. Other common causes include metabolic bone diseases (e.g. Paget's disease of bone), post Perthes deformity, osteomyelitis, and post traumatic (due to improper healing of a fracture between the greater and lesser trochanter). Shepherd's Crook deformity is a severe form of coxa vara where the proximal femur is severely deformed with a reduction in the neck shaft angle beyond 90 degrees. It is most commonly a sequela of osteogenesis imperfecta, Pagets disease, osteomyelitis, tumour and tumour-like conditions (e.g. fibrous dysplasia).
| Specialty: | Medical Genetics |
| MeSH Codes: | D060905, D060905 |
| ICD 9 Codes: | 736.32, 755.62 |
Different femoral abnormalities.
MS-DRG Mapping
- DRG Group #564-566 - Other musculoskeletal system and connective tissue diagnoses with MCC.
- DRG Group #564-566 - Other musculoskeletal system and connective tissue diagnoses with CC.
- DRG Group #564-566 - Other musculoskeletal system and connective tissue diagnoses without CC or MCC.
ICD-10-CM Alphabetical Index References for 'M21.10 - Varus deformity, not elsewhere classified, unspecified site'
The ICD-10-CM Alphabetical Index links the below-listed medical terms to the ICD code M21.10. Click on any term below to browse the alphabetical index.
Equivalent ICD-9 Code GENERAL EQUIVALENCE MAPPINGS (GEM)
This is the official approximate match mapping between ICD9 and ICD10, as provided by the General Equivalency mapping crosswalk. This means that while there is no exact mapping between this ICD10 code M21.10 and a single ICD9 code, 736.9 is an approximate match for comparison and conversion purposes.
Parent Code: M21.1 - Varus deformity, not elsewhere classified