Q72.4Longitudinal reduction defect of femur

Q72.4 is the ICD-10-CM diagnosis code for longitudinal reduction defect of femur. It belongs to category Q72 (reduction defects of lower limb), block Q65-Q79 (congenital malformations and deformations of the musculoskeletal system) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

Within Q72 (reduction defects of lower limb), Q72.4 is specifically for longitudinal reduction defect of femur. Related codes cover congenital complete absence of lower limb (Q72.0), congenital absence of thigh and lower leg with foot present (Q72.1), congenital absence of both lower leg and foot (Q72.2), congenital absence of foot and toe(s) (Q72.3), longitudinal reduction defect of tibia (Q72.5), longitudinal reduction defect of fibula (Q72.6), Split foot (Q72.7), other reduction defects of lower limb (Q72.8) and 1 more.

To report this condition, pick the subcode that matches the documentation: Q72.40 (femur), Q72.41 (femur), Q72.42 (femur) and Q72.43 (bilateral).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.