S93.0Subluxation and dislocation of ankle joint

S93.0 is the ICD-10-CM diagnosis code for subluxation and dislocation of ankle joint. It belongs to category S93 (dislocation and sprain of joints and ligaments at ankle, foot and toe level), block S90-S99 (injuries to the ankle and foot) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 6 subcodes must be used instead.

Within S93 (dislocation and sprain of joints and ligaments at ankle, foot and toe level), S93.0 is specifically for subluxation and dislocation of ankle joint. Related codes cover subluxation and dislocation of toe (S93.1), subluxation and dislocation of foot (S93.3), sprain of ankle (S93.4), sprain of toe (S93.5) and sprain of foot (S93.6).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

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