C91.50

Billable code

Adult T-cell lymphoma/leukemia (HTLV-1-associated) not having achieved remission

The ICD-10 code for adult t-cell lymphoma/leukemia (htlv-1-associated) not having achieved remission is C91.50.

Clinical notes

Also known as

Alternate wording, synonyms, or specific conditions that fall under this code, listed to help confirm you've picked the right one.

Adult T-cell lymphoma/leukemia (HTLV-1-associated) with failed remission
Adult T-cell lymphoma/leukemia (HTLV-1-associated) NOS

Documentation support

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

•As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

Related codes in this category

C91.51Adult T-cell lymphoma/leukemia (HTLV-1-associated), in remission
C91.52Adult T-cell lymphoma/leukemia (HTLV-1-associated), in relapse
C91.50Adult T-cell lymphoma/leukemia (HTLV-1-associated) not having achieved remission

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

20480Approximate match

View full ICD-10 → ICD-9 crosswalk →

Associated MS-DRGs

C91.50 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.