ICD-10-CM 2027 diagnosis code
C7A.096Malignant carcinoid tumor of the hindgut, unspecified
C7A.096 is a valid, billable ICD-10-CM code for malignant carcinoid tumor of the hindgut, unspecified. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.
Code last changed in FY2017 (effective October 1, 2016). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About C7A.096
C7A.096 is the ICD-10-CM diagnosis code for malignant carcinoid tumor of the hindgut, unspecified. It belongs to category C7A (malignant neuroendocrine tumors), block C7A (malignant neuroendocrine tumors) and chapter 2 (neoplasms). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within C7A.09, choose C7A.096 (tumor of the hindgut, unspecified) only when documentation doesn't support a more specific option: tumor of the bronchus and lung (C7A.090), tumor of the thymus (C7A.091), tumor of the stomach (C7A.092), tumor of the kidney (C7A.093), tumor of the foregut, unspecified (C7A.094), tumor of the midgut, unspecified (C7A.095) and tumors of other sites (C7A.098).
Use an additional code to identify any associated endocrine syndrome, such as: carcinoid syndrome (E34.00).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 374 (Digestive Malignancy with MCC, relative weight 2.1109), DRG 375 (Digestive Malignancy with CC, relative weight 1.1838) and DRG 376 (Digestive Malignancy without CC/MCC, relative weight 0.8929), in MDC 06 (Diseases and Disorders of the Digestive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015, and changed in FY2017 (title revised).
Before ICD-10, this condition was coded in ICD-9-CM as 209.27 (malignant carcinoid tumor of hindgut, not otherwise specified).
Notes that apply from higher levels
Instructions written at a parent level also apply to C7A.096.
Broader instructions also apply from Chapter 2: Neoplasms.
Alphabetic index entries
1 entriesTerms in the official ICD-10-CM index that lead to C7A.096.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 06 · Diseases and Disorders of the Digestive System
ICD-9-CM equivalent
Converter →- 209.27Malignant carcinoid tumor of hindgut, not otherwise specifiedexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- FY2017 (effective 10/1/2016): Title revised — was “Malignant carcinoid tumor of the hindgut NOS”
Common questions about C7A.096
Is C7A.096 billable?
- Yes. C7A.096 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can C7A.096 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict C7A.096 as a principal diagnosis.
Is C7A.096 a CC or MCC?
- C7A.096 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.
What DRG does C7A.096 group to?
- C7A.096 is used in the MS-DRG v44.0 logic for MS-DRG 374 (Digestive Malignancy with MCC), MS-DRG 375 (Digestive Malignancy with CC) and MS-DRG 376 (Digestive Malignancy without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.
What is the ICD-9 code for C7A.096?
- The CMS General Equivalence Mappings map C7A.096 to ICD-9-CM 209.27.