2020 ICD-10-CM Diagnosis Code C91.02

Acute lymphoblastic leukemia, in relapse

    2016 2017 2018 2019 2020 Billable/Specific Code
  • C91.02 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM C91.02 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of C91.02 - other international versions of ICD-10 C91.02 may differ.
The following code(s) above C91.02 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to C91.02:
  • C00-D49
    2020 ICD-10-CM Range C00-D49

    Neoplasms

    Note
    • Functional activity
    • All neoplasms are classified in this chapter, whether they are functionally active or not. An additional code from Chapter 4 may be used, to identify functional activity associated with any neoplasm.
    • Morphology [Histology]
    • Chapter 2 classifies neoplasms primarily by site (topography), with broad groupings for behavior, malignant, in situ, benign, etc. The Table of Neoplasms should be used to identify the correct topography code. In a few cases, such as for malignant melanoma and certain neuroendocrine tumors, the morphology (histologic type) is included in the category and codes.
    • Primary malignant neoplasms overlapping site boundaries
    • A primary malignant neoplasm that overlaps two or more contiguous (next to each other) sites should be classified to the subcategory/code .8 ('overlapping lesion'), unless the combination is specifically indexed elsewhere. For multiple neoplasms of the same site that are not contiguous, such as tumors in different quadrants of the same breast, codes for each site should be assigned.
    • Malignant neoplasm of ectopic tissue
    • Malignant neoplasms of ectopic tissue are to be coded to the site mentioned, e.g., ectopic pancreatic malignant neoplasms are coded to pancreas, unspecified (C25.9).
    Neoplasms
  • C81-C96
    2020 ICD-10-CM Range C81-C96

    Malignant neoplasms of lymphoid, hematopoietic and related tissue

    Type 2 Excludes
    • Kaposi's sarcoma of lymph nodes (C46.3)
    • secondary and unspecified neoplasm of lymph nodes (C77.-)
    • secondary neoplasm of bone marrow (C79.52)
    • secondary neoplasm of spleen (C78.89)
    Malignant neoplasms of lymphoid, hematopoietic and related tissue
  • C91
    ICD-10-CM Diagnosis Code C91

    Lymphoid leukemia

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • personal history of leukemia (Z85.6)
    Lymphoid leukemia
  • C91.0
    ICD-10-CM Diagnosis Code C91.0

    Acute lymphoblastic leukemia [ALL]

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Note
    • Codes in subcategory C91.0- should only be used for T-cell and B-cell precursor leukemia
    Acute lymphoblastic leukemia [ALL]
Approximate Synonyms
  • Acute lymphoid leukemia in relapse
ICD-10-CM C91.02 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 820 Lymphoma and leukemia with major o.r. Procedure with mcc
  • 821 Lymphoma and leukemia with major o.r. Procedure with cc
  • 822 Lymphoma and leukemia with major o.r. Procedure without cc/mcc
  • 834 Acute leukemia without major o.r. Procedure with mcc
  • 835 Acute leukemia without major o.r. Procedure with cc
  • 836 Acute leukemia without major o.r. Procedure without cc/mcc
  • 837 Chemotherapy with acute leukemia as sdx or with high dose chemotherapy agent with mcc
  • 838 Chemotherapy with acute leukemia as sdx with cc or high dose chemotherapy agent
  • 839 Chemotherapy with acute leukemia as sdx without cc/mcc

Convert C91.02 to ICD-9-CM

Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
ICD-10-CM Codes Adjacent To C91.02
C90.21 …… in remission
C90.22 …… in relapse
C90.3 Solitary plasmacytoma
C90.30 …… not having achieved remission
C90.31 …… in remission
C90.32 …… in relapse
C91 Lymphoid leukemia
C91.0 Acute lymphoblastic leukemia [ALL]
C91.00 Acute lymphoblastic leukemia not having achieved remission
C91.01 Acute lymphoblastic leukemia, in remission
C91.02 Acute lymphoblastic leukemia, in relapse
C91.1 Chronic lymphocytic leukemia of B-cell type
C91.10 …… not having achieved remission
C91.11 …… in remission
C91.12 …… in relapse
C91.3 Prolymphocytic leukemia of B-cell type
C91.30 …… not having achieved remission
C91.31 …… in remission
C91.32 …… in relapse
C91.4 Hairy cell leukemia
C91.40 …… not having achieved remission

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.