ICD-10-CM Codes 2026 (USA)

• C91.41	Hairy cell leukemia, in remission

• C91.00	Acute lymphoblastic leukemia not having achieved remission
  C91.01	Acute lymphoblastic leukemia, in remission
  C91.02	Acute lymphoblastic leukemia, in relapse
  C91.10	Chronic lymphocytic leukemia of B-cell type not having achieved remission
  C91.11	Chronic lymphocytic leukemia of B-cell type in remission
  C91.12	Chronic lymphocytic leukemia of B-cell type in relapse
  C91.30	Prolymphocytic leukemia of B-cell type not having achieved remission
  C91.31	Prolymphocytic leukemia of B-cell type, in remission
  C91.32	Prolymphocytic leukemia of B-cell type, in relapse
  C91.40	Hairy cell leukemia not having achieved remission
  C91.41	Hairy cell leukemia, in remission
  C91.42	Hairy cell leukemia, in relapse
  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
  C91.60	Prolymphocytic leukemia of T-cell type not having achieved remission
  C91.61	Prolymphocytic leukemia of T-cell type, in remission
  C91.62	Prolymphocytic leukemia of T-cell type, in relapse
  C91.90	Lymphoid leukemia, unspecified not having achieved remission
  C91.91	Lymphoid leukemia, unspecified, in remission

Created by Peter Blahut, MD