C91.5 Adult T-cell lymphoma/leukemia (HTLV-1-associated)

Non-billable header with 3 child codes.

Applicable to

• Acute variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)
• Chronic variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)
• Lymphomatoid variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)
• Smouldering variant of adult T-cell lymphoma/leukemia (HTLV-1-associated)

Applies from C91 Lymphoid leukemia

Excludes1 (never code together)

• personal history of leukemia (Z85.6)

Codes under C91.5

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

Code annotations containing back-references to C91.5

Back-references to C91

• Type 1 Excludes: C76 Malignant neoplasm of other and ill-defined sites ("malignant neoplasm of lymphoid, hematopoietic and related tissue (C81-C96)")
• Type 1 Excludes: D72.8 Other specified disorders of white blood cells ("leukemia (C91-C95)")
• Type 1 Excludes: D72.825 Bandemia ("leukemia (C91.-, C92.-, C93.-, C94.-, C95.-)")
• Code First: M36.1 Arthropathy in neoplastic disease ("leukemia (C91-C95)")
• Code First: N16 Renal tubulo-interstitial disorders in diseases classified elsewhere ("leukemia (C91-C95)")
• Code First: R50.81 Fever presenting with conditions classified elsewhere ("leukemia (C91-C95)")
• Type 1 Excludes: T66 Radiation sickness, unspecified ("leukemia (C91-C95)")
• Code First: Z15.0 Genetic susceptibility to malignant neoplasm (", if applicable, any current malignant neoplasm (C00-C75, C81-C96)")

Diagnosis Index entries for C91.5

• Leukemia, leukemic › adult T-cell (HTLV-1-associated) (acute variant) (chronic variant) (lymphomatoid variant) (smouldering variant)
• Lymphoma (of) (malignant) › adult T-cell (HTLV-1-associated) (acute variant) (chronic variant) (lymphomatoid variant) (smouldering variant)

Nearby codes

• C91.32 Prolymphocytic leukemia of B-cell type, in relapse
• C91.4 Hairy cell leukemia
• C91.40 Hairy cell leukemia not having achieved remission
• C91.41 Hairy cell leukemia, in remission
• C91.42 Hairy cell leukemia, in relapse
• C91.5 Adult T-cell lymphoma/leukemia (HTLV-1-associated) (this code)
• C91.50 Adult T-cell lymphoma/leukemia (HTLV-1-associated) not having achieved remission
• C91.51 Adult T-cell lymphoma/leukemia (HTLV-1-associated), in remission
• C91.52 Adult T-cell lymphoma/leukemia (HTLV-1-associated), in relapse
• C91.6 Prolymphocytic leukemia of T-cell type
• C91.60 Prolymphocytic leukemia of T-cell type not having achieved remission