10ICD Code Hub

C91.6

Header — not billable

Prolymphocytic leukemia of T-cell type

The ICD-10 code for prolymphocytic leukemia of t-cell type is C91.6.

C91.6 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

Child codes under C91.6

Related codes in this category