All ICD10 Codes

C20

Billable
ChapterC00–D49
Rankcategory
Official Description

Malignant neoplasm of rectum

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 2: Neoplasms (C00-D49).

C15-C26 Parent Instructions

Excludes1(Not coded here. Use a different code.)
  • Kaposi's sarcoma of gastrointestinal sites (C46.4)
Excludes2(Not included here. Code separately if applicable.)
  • gastrointestinal stromal tumors (C49.A-)

Instructional Notes

Includes
  • Malignant neoplasm of rectal ampulla
Excludes1(Not coded here. Use a different code.)
  • malignant carcinoid tumor of the rectum (C7A.026)

Clinical Hierarchy

BillableHas subcodes
CH2Neoplasms (C00-D49)
C15-C26Malignant neoplasms of digestive organs (C15-C26)
C20Malignant neoplasm of rectumBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to C20:

blockC15-C26
Malignant neoplasms of digestive organs (C15-C26)
View context instructions

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 374
Digestive Malignancy with MCC
DRG 375
Digestive Malignancy with CC
DRG 376
Digestive Malignancy without CC/MCC

Cross Reference

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