S81.85Open bite of lower leg

S81.85 is the ICD-10-CM diagnosis code for open bite of lower leg. It belongs to category S81 (open wound of knee and lower leg), 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 S81.8 (open wound of lower leg), S81.85 is specifically for open bite of lower leg. Related codes cover unspecified open wound of lower leg (S81.80), laceration without foreign body of lower leg (S81.81), laceration with foreign body of lower leg (S81.82), puncture wound without foreign body of lower leg (S81.83) and puncture wound with foreign body of lower leg (S81.84).

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.

Don't report S81.85 together with the conditions in its Excludes1 note: superficial bite of lower leg (S80.86-, S80.87-).

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