S85.99Other specified injury of unspecified blood vessel at lower leg level

S85.99 is the ICD-10-CM diagnosis code for other specified injury of unspecified blood vessel at lower leg level. It belongs to category S85 (injury of blood vessels at lower leg level), 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 S85.9, choose S85.99 (Other specified injury of unspecified blood vessel at lower leg level) only when documentation doesn't support a more specific option: unspecified injury of unspecified blood vessel at lower leg level (S85.90) and laceration of unspecified blood vessel at lower leg level (S85.91).

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.