In simple words: This code means a baby is born with extra fingers or toes, or fingers or toes that are joined together.The doctor uses this code when they can’t specify exactly which fingers or toes are affected.

Q70.4, Polysyndactyly, unspecified, is an ICD-10-CM code that classifies the presence of supernumerary (extra) digits or syndactyly (fusion of digits) without specifying the affected digit(s), hand(s), or foot(s).It encompasses a range of congenital musculoskeletal anomalies affecting the hands and/or feet.This code excludes conditions where specific syndactyly of the hand or foot is identified; those conditions should be coded according to the specific anatomical location and presentation (Q70.0-Q70.3).

Example 1: A newborn is found to have an extra digit on each hand and foot., A child presents with two fingers fused together on one hand and an extra toe on one foot., A patient has undergone surgical separation of fused toes, and the unspecified polydactyly diagnosis is used for billing.

Detailed medical history, physical examination findings including specific details on the number and location of extra or fused digits, imaging studies (X-rays, ultrasound), and operative notes (if applicable).

** This code is for use only in cases where the specific type and location of polydactyly or syndactyly cannot be determined.