S09 vs S09.2
S09 and S09.2 can never be reported together. ICD-10-CM declares them mutually exclusive with an Excludes1 note, meaning the two conditions cannot occur in the same patient — so exactly one of them is correct for any given encounter.
The official note, declared on S09.2
traumatic rupture of ear drum due to blast injury (S09.31-)
S09
Other and unspecified injuries of head
Not billable
- Chapter 19
- Injury, poisoning and certain other consequences of external causes
- Section
- S00-S09
S09.2
Traumatic rupture of ear drum
Not billable
- Chapter 19
- Injury, poisoning and certain other consequences of external causes
- Section
- S00-S09
Indexed under
- Puncture › tympanum, tympanic membrane
- Wound, open › tympanum, tympanic membrane
- Laceration › ear › drum
- Perforation, perforated › tympanum, tympanic › traumatic, current episode (nontraumatic) (of)
- Puncture › ear › drum
Excludes1 is not always absolute: where two conditions covered by the note are genuinely unrelated, CMS guidance permits reporting both. Document the reasoning rather than assuming it. More on Excludes1 vs Excludes2 · FY2027