S82.09Other fracture of patella

S82.09 is the ICD-10-CM diagnosis code for other fracture of patella. It belongs to category S82 (fracture of lower leg, including ankle), block S80-S89 (injuries to the knee and lower leg) 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 3 subcodes must be used instead.

Within S82.0, choose S82.09 (Other fracture of patella) only when documentation doesn't support a more specific option: unspecified fracture of patella (S82.00), osteochondral fracture of patella (S82.01), longitudinal fracture of patella (S82.02), transverse fracture of patella (S82.03) and comminuted fracture of patella (S82.04).

Codes in this range require a 7th character: A for initial encounter for closed fracture, B for initial encounter for open fracture type I or II, C for initial encounter for open fracture type IIIA, IIIB, or IIIC, D for subsequent encounter for closed fracture with routine healing, E for subsequent encounter for open fracture type I or II with routine healing, F for subsequent encounter for open fracture type IIIA, IIIB, or IIIC with routine healing and 10 more. 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.