AHA Coding Clinic® for ICD-10-CM and ICD-10-PCS - 2016 Issue 4; ICD-10-CM NEW/REVISED CODES
Congenital Metatarsus Primus Varus and Metatarsus Adductus
Code Q66.2, Congenital metatarsus (primus) varus, has been further expanded and new codes created to identify congenital metatarsus primus varus (Q66.21) and congenital metatarsus adductus (Q66.22), at the request of the American Podiatric Medical Association (APMA). Congenital metatarsus primus varus is deformity of the first metatarsal of the foot. The deformity involves adduction of the first metatarsal towards the midline, resulting in increased metatarsus adductus primus angle, stretch of intermetatarsal ligament and predisposition to hallux abductovalgus or in-toeing. Congenital metatarsus adductus involves adduction of all the metatarsals, not just the first metatarsal (primus varus). Metatarsus adductus...
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Article Overview
This article covers a coding update for congenital foot deformities, focusing on how a preexisting ICD-10-CM category was expanded into more specific congenital diagnosis codes. It is relevant to coders, billers, and podiatry-related practices that need to understand how these congenital conditions are represented in ICD-10-CM and why the update was requested by a professional medical organization.
Why This Topic Matters
Accurate identification of congenital foot deformities affects diagnosis coding specificity and supports cleaner documentation and reporting in podiatry and related specialties. The article helps readers understand the scope of the ICD-10-CM change and the clinical concepts tied to the updated terminology.
What You Will Learn
- How a congenital foot deformity code category was expanded in ICD-10-CM
- The distinction between the two congenital metatarsal conditions discussed in the article
- Why the coding update was issued and who requested it
- The general clinical context for these congenital foot deformities
Who Should Read This
- Medical coders
- Medical billers
- Podiatry practices
- Clinical documentation staff
- Revenue cycle professionals
Codes Discussed
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