Y35.399S — Legal intervention involving other blunt objects, unspecified person injured, sequela
Is Y35.399S billable?
Yes, but Y35.399S is an unspecified code. Y35.399S is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, Y35.399S is an unspecified or catch-all code. Payers apply additional scrutiny to unspecified codes and many deny them when the medical record supports a more specific option, so check the documentation before selecting Y35.399S — the more specific alternatives are listed below.
Y35.399S at a glance
| Code | Y35.399S |
|---|---|
| Description | Legal intervention involving other blunt objects, unspecified person injured, sequela |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "S" | sequela |
What does the 7th character "S" mean in Y35.399S?
In Y35.399S, the 7th character S means sequela. The 7th character is required for Y35.399S to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
How is Y35.399S listed in the External Cause Index?
The External Cause of Injuries Index lists these routes under Y35.399, the nearest indexed parent of Y35.399S. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.
- Legal › intervention › blunt object › specified NEC › injuring › unspecified person
- Legal › intervention › blunt object › stave › injuring › unspecified person
How long has Y35.399S existed?
Y35.399S first appears in FY2021 (FY2020 is not available, so it may have appeared then).
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.