Z89.44Acquired absence of ankle

Z89.44 is the ICD-10-CM diagnosis code for acquired absence of ankle. It belongs to category Z89 (acquired absence of limb), block Z77-Z99 (persons with potential health hazards related to family and personal history and certain conditions influencing health status) and chapter 21 (factors influencing health status and contact with health services). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within Z89.4 (acquired absence of toe(s), foot, and ankle), Z89.44 is specifically for acquired absence of ankle. Related codes cover great toe (Z89.41), other toe(s) (Z89.42) and foot (Z89.43).

To report this condition, pick the subcode that matches the documentation: Z89.441 (ankle), Z89.442 (ankle) and Z89.449 (ankle).

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