ICDcodes.org
FY2027

Y35.99XALegal intervention, means unspecified, unspecified person injured, initial encounter

BillableUnspecified

Is Y35.99XA billable?

Yes, but Y35.99XA is an unspecified code. Y35.99XA is a valid, billable ICD-10-CM code for encounters from October 1, 2026 through September 30, 2027. However, Y35.99XA 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 Y35.99XA — the more specific alternatives are listed below.

Y35.99XA at a glance

CodeY35.99XA
DescriptionLegal intervention, means unspecified, unspecified person injured, initial encounter
BillableYes
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027
7th character "A"initial encounter

What does the 7th character "A" mean in Y35.99XA?

In Y35.99XA, the 7th character A means initial encounter. The 7th character is required for Y35.99XA to be a valid, complete code.

Same condition, different episode of care — switch the 7th character:

How is Y35.99XA listed in the External Cause Index?

The External Cause of Injuries Index lists these routes under Y35.99, the nearest indexed parent of Y35.99XA. This is a separate index from the Alphabetic Index and is where external cause codes are looked up.

  • Legalinterventioninjuringunspecified person

How long has Y35.99XA existed?

Y35.99XA 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.