Question 1

What is ICD-10 code Y35.811?

Accepted Answer

Y35.811 is the ICD-10-CM diagnosis code for Legal intervention involving manhandling, law enforcement official injured. It belongs to the ICD-10-CM chapter for external causes of morbidity (v00-y99). Y35.811 is a non-billable header code that organizes more specific child codes; the actual diagnosis on a claim must use one of those children. Y35.811 is part of the FY2026 ICD-10-CM code set published by the CMS National Center for Health Statistics and used on Medicare, Medicaid, and commercial claims in the United States.

Question 2

Is Y35.811 an HCC code?

Accepted Answer

Y35.811 is a non-billable header code, so it cannot itself be a payment HCC. Header codes organize more specific child codes that share the same root concept; one of those children may map to a payment HCC under the CMS-HCC V28 or V24 risk adjustment model. Coders should select a child code from the Y35.811 hierarchy that matches the documented presentation, then check that specific child for HCC status.

Question 3

Is Y35.811 billable?

Accepted Answer

No. Y35.811 is a header (non-billable) ICD-10-CM code. Header codes sit at a higher level of the diagnosis hierarchy and exist to organize a family of more specific child codes. Per ICD-10-CM coding guidelines, a header code cannot be reported on a claim as the diagnosis, coders must select a billable child code from the Y35.811 hierarchy that matches the highest level of specificity supported by the provider's documentation. Payers reject header codes submitted as the primary diagnosis.

HCC Buddy Code Card

Y35.811

What This Code Means

Child Codes

Code Hierarchy

Open Y35.811 in the Interactive Encoder

Y35.811 ICD-10-CM Code: Legal intervention involving manhandling, law enforcement official injured