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ICD-10-CM · FY 2026 APRIL UPDATE

C7A

Malignant neuroendocrine tumors

Diagnosis reference

Nonbillable category

This entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.

Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification

Related entries

Up to 30 descendants in this category

CODEDESCRIPTIONTYPE
C7A.0Malignant carcinoid tumorsCategory
C7A.00Malignant carcinoid tumor of unspecified siteBillable
C7A.01Malignant carcinoid tumors of the small intestineCategory
C7A.010Malignant carcinoid tumor of the duodenumBillable
C7A.011Malignant carcinoid tumor of the jejunumBillable
C7A.012Malignant carcinoid tumor of the ileumBillable
C7A.019Malignant carcinoid tumor of the small intestine, unspecified portionBillable
C7A.02Malignant carcinoid tumors of the appendix, large intestine, and rectumCategory
C7A.020Malignant carcinoid tumor of the appendixBillable
C7A.021Malignant carcinoid tumor of the cecumBillable
C7A.022Malignant carcinoid tumor of the ascending colonBillable
C7A.023Malignant carcinoid tumor of the transverse colonBillable
C7A.024Malignant carcinoid tumor of the descending colonBillable
C7A.025Malignant carcinoid tumor of the sigmoid colonBillable
C7A.026Malignant carcinoid tumor of the rectumBillable
C7A.029Malignant carcinoid tumor of the large intestine, unspecified portionBillable
C7A.09Malignant carcinoid tumors of other sitesCategory
C7A.090Malignant carcinoid tumor of the bronchus and lungBillable
C7A.091Malignant carcinoid tumor of the thymusBillable
C7A.092Malignant carcinoid tumor of the stomachBillable
C7A.093Malignant carcinoid tumor of the kidneyBillable
C7A.094Malignant carcinoid tumor of the foregut, unspecifiedBillable
C7A.095Malignant carcinoid tumor of the midgut, unspecifiedBillable
C7A.096Malignant carcinoid tumor of the hindgut, unspecifiedBillable
C7A.098Malignant carcinoid tumors of other sitesBillable
C7A.1Malignant poorly differentiated neuroendocrine tumorsBillable
C7A.8Other malignant neuroendocrine tumorsBillable

Use the complete reference

This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.

Open official CMS files

ICD-10-CM codes describe diagnoses. They do not have an independent Medicare PFS reimbursement amount, and billability alone does not establish coverage.