DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

C93 Monocytic leukemia

  • Header · not billable

C93 is not billable. The category heads 15 billable codes in FY2027, grouped under 5 subdivisions.

Index → code

  • Schilling-type monocytic leukemia → C93.0-
  • Leukemia, leukemicAML M5 → C93.0-
  • Leukemia, leukemicAML M5a → C93.0-

Where it sits

  1. Chapter 2 Neoplasms (C00-D49)
  2. C81-C96 Malignant neoplasms of lymphoid, hematopoietic and related tissue (C81-C96)
  3. C93 Monocytic leukemia
Billable codes
15
Subdivisions
5
CC / MCC codes
15 / 0
HCC V28 codes
15
New FY2027
0
Index entries
13

Codes in C93

  1. C93.0
    Acute monoblastic/monocytic leukemia
    Header
    Inclusion terms 3

    Inclusion terms

    • AML M5
    • AML M5a
    • AML M5b
  2. C93.00
    Acute monoblastic/monocytic leukemia, not having achieved remission
    BillableCC17
    Inclusion terms 2

    Inclusion terms

    • Acute monoblastic/monocytic leukemia with failed remission
    • Acute monoblastic/monocytic leukemia NOS
  3. C93.01
    Acute monoblastic/monocytic leukemia, in remission
    BillableCC17
  4. C93.02
    Acute monoblastic/monocytic leukemia, in relapse
    BillableCC17
  5. C93.1
    Chronic myelomonocytic leukemia
    Header
    Inclusion terms 4, Code also 1

    Inclusion terms

    • Chronic monocytic leukemia
    • CMML-1
    • CMML-2
    • CMML with eosinophilia

    Code also

    • , if applicable, eosinophilia (D72.18) D72.18
  6. C93.10
    Chronic myelomonocytic leukemia not having achieved remission
    BillableCC20
    Inclusion terms 2

    Inclusion terms

    • Chronic myelomonocytic leukemia with failed remission
    • Chronic myelomonocytic leukemia NOS
  7. C93.11
    Chronic myelomonocytic leukemia, in remission
    BillableCC20
  8. C93.12
    Chronic myelomonocytic leukemia, in relapse
    BillableCC20
  9. C93.3
    Juvenile myelomonocytic leukemia
    Header
  10. C93.30
    Juvenile myelomonocytic leukemia, not having achieved remission
    BillableCC20
    Inclusion terms 2

    Inclusion terms

    • Juvenile myelomonocytic leukemia with failed remission
    • Juvenile myelomonocytic leukemia NOS
  11. C93.31
    Juvenile myelomonocytic leukemia, in remission
    BillableCC20
  12. C93.32
    Juvenile myelomonocytic leukemia, in relapse
    BillableCC20
  13. C93.Z
    Other monocytic leukemia
    Header
  14. C93.Z0
    Other monocytic leukemia, not having achieved remission
    BillableCC20
    Inclusion terms 1

    Inclusion terms

    • Other monocytic leukemia NOS
  15. C93.Z1
    Other monocytic leukemia, in remission
    BillableCC20
  16. C93.Z2
    Other monocytic leukemia, in relapse
    BillableCC20
  17. C93.9
    Monocytic leukemia, unspecified
    Header
  18. C93.90
    Monocytic leukemia, unspecified, not having achieved remission
    BillableCC20
    Inclusion terms 2

    Inclusion terms

    • Monocytic leukemia, unspecified with failed remission
    • Monocytic leukemia, unspecified NOS
  19. C93.91
    Monocytic leukemia, unspecified in remission
    BillableCC20
  20. C93.92
    Monocytic leukemia, unspecified in relapse
    BillableCC20

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At C93

Includes

  • monocytoid leukemia

Excludes1

  • personal history of leukemia (Z85.6) Z85.6

Notes that also apply

Block C81-C96 instructions (Excludes2 4): printed on the block page.

Chapter 2 instructions (Notes 8): printed on the chapter 2 page.

Index entries

  • Schilling-type monocytic leukemia → C93.0-
  • Leukemia, leukemicacute monoblastic (monoblastic/monocytic) → C93.0-
  • Leukemia, leukemicacute monocytic (monoblastic/monocytic) → C93.0-
  • Leukemia, leukemicAML M5 → C93.0-
  • Leukemia, leukemicAML M5a → C93.0-
  • Leukemia, leukemicAML M5b → C93.0-
  • Leukemia, leukemicchronic monocytic → C93.1-
  • Leukemia, leukemicchronic myelomonocytic → C93.1-
  • Leukemia, leukemicCMML (-1) (-2) (with eosinophilia) → C93.1-
  • Naegeli'sleukemia, monocytic → C93.1-
  • Leukemia, leukemicjuvenile myelomonocytic → C93.3-
  • Leukemia, leukemicmonocytic (subacute) → C93.9-
  • Leukemia, leukemicmonocytic (subacute)specified NEC → C93.Z-

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy