T15Foreign body on external eye

T15 is the ICD-10-CM diagnosis code for foreign body on external eye. It belongs to block T15-T19 (effects of foreign body entering through natural orifice) 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 4 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: T15.0 (cornea), T15.1 (sac), T15.8 (eye) and T15.9 (part unspecified).

The conditions in its Excludes2 note aren't part of T15, but may be coded alongside it if the patient has both: foreign body in penetrating wound of orbit and eye ball (S05.4-, S05.5-), open wound of eyelid and periocular area (S01.1-), retained foreign body in eyelid (H02.8-), retained (old) foreign body in penetrating wound of orbit and eye ball (H05.5-, H44.6-, H44.7-) and 1 more.

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