Syndactyly (Q70) ICD-10-CM
The Q70 code range covers syndactyly with 23 ICD-10-CM diagnosis codes. 18 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Codes in the Q70 Range 23 codes · 18 billable
- Q70 SyndactylyNon-billable
- Q70.0 Fused fingersNon-billable
- Q70.00 Fused fingers, unspecified hand
- Q70.01 Fused fingers, right hand
- Q70.02 Fused fingers, left hand
- Q70.03 Fused fingers, bilateral
- Q70.1 Webbed fingersNon-billable
- Q70.10 Webbed fingers, unspecified hand
- Q70.11 Webbed fingers, right hand
- Q70.12 Webbed fingers, left hand
- Q70.13 Webbed fingers, bilateral
- Q70.2 Fused toesNon-billable
- Q70.20 Fused toes, unspecified foot
- Q70.21 Fused toes, right foot
- Q70.22 Fused toes, left foot
- Q70.23 Fused toes, bilateral
- Q70.3 Webbed toesNon-billable
- Q70.30 Webbed toes, unspecified foot
- Q70.31 Webbed toes, right foot
- Q70.32 Webbed toes, left foot
- Q70.33 Webbed toes, bilateral
- Q70.4 Polysyndactyly, unspecified
- Q70.9 Syndactyly, unspecified
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the Q70 range.
Poland Syndrome
A syndrome which is characterized by symbrachydactyly and aplasia of the sternal head of pectoralis major.
Syndactyly
A congenital anomaly of the hand or foot, marked by the webbing between adjacent fingers or toes. Syndactylies are classified as complete or incomplete by the degree of joining. Syndactylies can also be simple or complex. Simple syndactyly indicates joining of only skin or soft tissue; complex syndactyly marks joining of bony elements.
About the Q70 Code Range
ICD-10 code Q70 covers syndactyly, a congenital condition involving fusion or webbing of fingers or toes. It categorizes various forms of syndactyly, specifying whether the fusion is bony (fused) or skin-only (webbed), and identifies which hand or foot is affected.
Syndactyly includes conditions commonly called fused fingers (Q70.0) or webbed fingers (Q70.1), and similarly for toes (Q70.2 and Q70.3). For instance, Q70.00 refers to osseous syndactyly of the fingers on an unspecified hand, encompassing terms like "acrosyndactyly of thumb" or "congenital bony fusion of phalanges." Codes further specify right, left, or bilateral involvement. The code Q70.4 relates to polysyndactyly (extra fused digits), while Q70.9 is used for unspecified syndactyly types. These distinctions help medical coders accurately assign the ICD-10 code for syndactyly variants based on the precise presentation, facilitating clear documentation and data tracking for congenital musculoskeletal anomalies.
Questions About This Page
How many billable codes are in the Q70 range?
Of the 23 codes in this range, 18 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the Q70 range classify?
The range classifies syndactyly. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
