Q70.4 Polysyndactyly, unspecified

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Excludes1 (never code together)

• specified syndactyly of hand and feet - code to specified conditions (Q70.0- -Q70.3-)

MS-DRG index

Defines the logic of DRG(s) 564-566 in MDC 08.

Approximate ICD-9-CM (GEMs)

• 755.00 Polydactyly, unspecified digits (approximate)
• 755.10 Syndactyly of multiple and unspecified sites (approximate)

Code annotations containing back-references to Q70.4

Back-references to Q70

• Type 1 Excludes: M20 Acquired deformities of fingers and toes ("congenital deformities and malformations of fingers and toes (Q66.-, Q68-Q70, Q74.-)")
• Type 1 Excludes: M21 Other acquired deformities of limbs ("congenital deformities and malformations of limbs (Q65-Q66, Q68-Q74)")
• Type 1 Excludes: M24.3 Pathological dislocation of joint, not elsewhere classified ("congenital dislocation or displacement of joint- see congenital malformations and deformations of the musculoskeletal system (Q65-Q79)")
• Type 2 Excludes: M95 Other acquired deformities of musculoskeletal system and connective tissue ("congenital malformations and deformations of the musculoskeletal system (Q65-Q79)")
• Type 1 Excludes: Q74 Other congenital malformations of limb(s) ("syndactyly (Q70.-)")

Diagnosis Index entries for Q70.4

• Polysyndactyly

Nearby codes

• Q70.3 Webbed toes
• 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 (this code)
• Q70.9 Syndactyly, unspecified