S20.47Other superficial bite of back wall of thorax

S20.47 is the ICD-10-CM diagnosis code for other superficial bite of back wall of thorax. It belongs to category S20 (superficial injury of thorax), block S20-S29 (injuries to the thorax) 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 S20.4, choose S20.47 (Other superficial bite of back wall of thorax) only when documentation doesn't support a more specific option: unspecified superficial injuries of back wall of thorax (S20.40), abrasion of back wall of thorax (S20.41), Blister (nonthermal) of back wall of thorax (S20.42), external constriction of back wall of thorax (S20.44), superficial foreign body of back wall of thorax (S20.45) and insect bite (nonvenomous) of back wall of thorax (S20.46).

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 S20.47 together with the conditions in its Excludes1 note: open bite of back wall of thorax (S21.24).

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