S93.31Subluxation and dislocation of tarsal joint

S93.31 is the ICD-10-CM diagnosis code for subluxation and dislocation of tarsal 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 S93.3 (subluxation and dislocation of foot), S93.31 is specifically for subluxation and dislocation of tarsal joint. Related codes cover unspecified subluxation and dislocation of foot (S93.30), subluxation and dislocation of tarsometatarsal joint (S93.32) and other subluxation and dislocation of foot (S93.33).

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.