Category C91
Lymphoid leukemia
Clinical Classification Guidelines
Specific Diagnosis Codes
Acute lymphoblastic leukemia [ALL]
C91.0
Acute lymphoblastic leukemia not having achieved remission
C91.00
Acute lymphoblastic leukemia, in remission
C91.01
Acute lymphoblastic leukemia, in relapse
C91.02
Chronic lymphocytic leukemia of B-cell type
C91.1
Chronic lymphocytic leukemia of B-cell type not having achieved remission
C91.10
Chronic lymphocytic leukemia of B-cell type in remission
C91.11
Chronic lymphocytic leukemia of B-cell type in relapse
C91.12
Prolymphocytic leukemia of B-cell type
C91.3
Prolymphocytic leukemia of B-cell type not having achieved remission
C91.30
Prolymphocytic leukemia of B-cell type, in remission
C91.31
Prolymphocytic leukemia of B-cell type, in relapse
C91.32
Hairy cell leukemia
C91.4
Hairy cell leukemia not having achieved remission
C91.40
Hairy cell leukemia, in remission
C91.41
Hairy cell leukemia, in relapse
C91.42
Adult T-cell lymphoma/leukemia (HTLV-1-associated)
C91.5
Adult T-cell lymphoma/leukemia (HTLV-1-associated) not having achieved remission
C91.50
Adult T-cell lymphoma/leukemia (HTLV-1-associated), in remission
C91.51
Adult T-cell lymphoma/leukemia (HTLV-1-associated), in relapse
C91.52
Prolymphocytic leukemia of T-cell type
C91.6
Prolymphocytic leukemia of T-cell type not having achieved remission
C91.60
Prolymphocytic leukemia of T-cell type, in remission
C91.61
Prolymphocytic leukemia of T-cell type, in relapse
C91.62
Lymphoid leukemia, unspecified
C91.9
Lymphoid leukemia, unspecified not having achieved remission
C91.90
Lymphoid leukemia, unspecified, in remission
C91.91
Lymphoid leukemia, unspecified, in relapse
C91.92
Mature B-cell leukemia Burkitt-type
C91.A
Mature B-cell leukemia Burkitt-type not having achieved remission
C91.A0
Mature B-cell leukemia Burkitt-type, in remission
C91.A1
Mature B-cell leukemia Burkitt-type, in relapse
C91.A2
Other lymphoid leukemia
C91.Z
Other lymphoid leukemia not having achieved remission
C91.Z0
Other lymphoid leukemia, in remission
C91.Z1
Other lymphoid leukemia, in relapse
C91.Z2
