Version 2024

2024 ICD-10-CM Diagnosis Code C7A.020

Malignant carcinoid tumor of the appendix

ICD-10-CM:: C7A.020
Short Description:: Malignant carcinoid tumor of the appendix
Is Billable?: Yes - Valid for Submission
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Code Classification

Neoplasms
(C00–D48)
- Malignant neuroendocrine tumors
  (C7A)
  - Malignant neuroendocrine tumors
    (C7A)

C7A.020 is a billable diagnosis code used to specify a medical diagnosis of malignant carcinoid tumor of the appendix. The code is valid during the current fiscal year for the submission of HIPAA-covered transactions from October 01, 2023 through September 30, 2024.

1. Approximate Synonyms
2. Tabular List of Diseases and Injuries
3. Index to Diseases and Injuries References
4. Diagnostic Related Groups - MS-DRG Mapping
5. Convert to ICD-9 Code
6. Patient Education
7. Other Codes Used Similar Conditions
8. Code History

Approximate Synonyms

The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:

Carcinoid tumor of appendix
Malignant carcinoid tumor of appendix
Malignant carcinoid tumor of large intestine
Neuroendocrine neoplasm of appendix

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).

- Tumor - See Also: Neoplasm, unspecified behavior, by site;
- - carcinoid - D3A.00
  - - malignant - C7A.00
    - - appendix - C7A.020

Diagnostic Related Groups - MS-DRG Mapping

Diagnostic Related Groups (DRGs) are a classification system used to group together diagnosis codes for the purpose of reimbursement and healthcare management. DRGs are used to standardize the way hospitals and other providers are paid for inpatient services. In this system patients are grouped together based on their principal diagnosis in areas referred to as Major Diagnostic Categories (MDC). Once a patient is assigned a particular diagnostic category, providers receive a predetermined payment rate for the services rendered. This reimbursement rate is often fixed and is meant to cover the cost of care for that patient. Reimbursement is also affected by the relative weight of a diagnostic related group based on the severity of a patient's illness and the associated cost of care during hospitalization.

Diagnostic related groups encourage healthcare providers to focus on quality and efficiency in patient care while managing costs effectively. The diagnosis code is present in the following groups for version MS-DRG V41.0 applicable from 10/01/2023 through 09/30/2024.

MS-DRG	MS-DRG Title	MCD	Relative Weight
374	DIGESTIVE MALIGNANCY WITH MCC	06	2.099
375	DIGESTIVE MALIGNANCY WITH CC	06	1.1983
376	DIGESTIVE MALIGNANCY WITHOUT CC/MCC	06	0.8914

The relative weight of a diagnostic related group determines the reimbursement rate based on the severity of a patient's illness and the associated cost of care during hospitalization.

Convert to ICD-9-CM Code

Source ICD-10-CM Code		Target ICD-9-CM Code
C7A.020		209.11 - Malig carcinoid appendix

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
FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016. This was the first year ICD-10-CM was implemented into the HIPAA code set.