2024 ICD-10-CM Diagnosis Code C96.20
Malignant mast cell neoplasm, unspecified
- ICD-10-CM Code:
- C96.20
- ICD-10 Code for:
- Malignant mast cell neoplasm, unspecified
- Is Billable?
- Yes - Valid for Submission
- Chronic Condition Indicator: [1]
- Chronic
- Code Navigator:
C96.20 is a billable diagnosis code used to specify a medical diagnosis of malignant mast cell neoplasm, unspecified. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.
Unspecified diagnosis codes like C96.20 are acceptable when clinical information is unknown or not available about a particular condition. Although a more specific code is preferable, unspecified codes should be used when such codes most accurately reflect what is known about a patient's condition. Specific diagnosis codes should not be used if not supported by the patient's medical record.
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Malignant mast cell tumor
- Malignant mast cell tumor of lymph nodes of lower limb
- Malignant mast cell tumor of lymph nodes of upper limb
- Mast cell malignancy
- Mast cell malignancy of lymph nodes
- Mast cell malignancy of lymph nodes of head
- Mast cell malignancy of lymph nodes of head and neck
- Mast cell malignancy of lymph nodes of head and neck
- Mast cell malignancy of lymph nodes of neck
Clinical Classification
Clinical Category is Non-Hodgkin lymphoma
- CCSR Category Code: NEO058
- Inpatient Default CCSR: Y - Yes, default inpatient assignment for principal diagnosis or first-listed diagnosis.
- Outpatient Default CCSR: Y - Yes, default outpatient assignment for principal diagnosis or first-listed diagnosis.
Index to Diseases and Injuries References
The following annotation back-references for this diagnosis code are found in the injuries and diseases index. The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10-CM code(s).
- - Neoplasm, neoplastic - See Also: Table of Neoplasms;
- - malignant mast cell - C96.20
Replacement Code
C9620 replaces the following previously assigned ICD-10-CM code(s):
- C96.2 - Malignant mast cell neoplasm
- C96.2 - Malignant mast cell tumor
Convert C96.20 to ICD-9-CM
- ICD-9-CM Code: 202.60 - Mlg mast unsp xtrndl org
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.61 - Mal mastocytosis head
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.62 - Mal mastocytosis thorax
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.63 - Mal mastocytosis abdom
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.64 - Mal mastocytosis axilla
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.65 - Mal mastocytosis inguin
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.66 - Mal mastocytosis pelvic
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.67 - Mal mastocytosis spleen
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code. - ICD-9-CM Code: 202.68 - Mal mastocytosis mult
Approximate Flag - The approximate mapping means there is not an exact match between the ICD-10 and ICD-9 codes and the mapped code is not a precise representation of the original code.
Code History
- FY 2024 - No Change, effective from 10/1/2023 through 9/30/2024
- FY 2023 - No Change, effective from 10/1/2022 through 9/30/2023
- FY 2022 - No Change, effective from 10/1/2021 through 9/30/2022
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.