2026 ICD-10-CM Diagnosis Code D13.39Benign neoplasm of other parts of small intestine

ICD-10-CM Codes›C00–D49›D10-D36›D13

ICD-10-CM D13.39
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

D13.39 is a billable ICD-10-CM diagnosis code for benign neoplasm of other parts of small intestine. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 393 through 395. Coders also document this condition as benign carcinoid neoplasm of jejunum. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms.

Code Identity

ICD-10-CM Code
D13.39
Billable Status
Yes — Valid for Submission
Code Describes
Benign neoplasm of other parts of small intestine
Short Description
Benign neoplasm of other parts of small intestine
Same as the full description in the CMS dataset.
Parent Code
D13.3
Benign neoplasm of other and unspecified parts of small intestine

Code Classification

ChapterC00–D49Neoplasms
SectionD10-D36Benign neoplasms, except benign neuroendocrine tumors
CategoryD13Benign neoplasm of other and ill-defined parts of digestive system
This CodeD13.39Benign neoplasm of other parts of small intestine

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Benign carcinoid neoplasm of jejunum
  • Benign neoplasm of ileum
  • Benign neoplasm of jejunum
  • Jejunal polyp
  • Leiomyoma of jejunum
  • Leiomyoma of small intestine
  • Malignant neoplasm of jejunum
  • Neuroendocrine neoplasm of jejunum
  • Polyp of small intestine

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR NEO073
Benign neoplasms
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Jejunal Neoplasms

    tumors or cancer in the jejunum region of the small intestine (intestine, small).

  • Jejunum

    the middle portion of the small intestine, between duodenum and ileum. it represents about 2/5 of the remaining portion of the small intestine below duodenum.

Table of NeoplasmsClinical

Anatomical sites in the Table of Neoplasms that reference this code family.

SiteMalig.
Primary		Malig.
Secondary		Ca
in situ		BenignUncertainUnspec.
duodenojejunal junctionC17.8C78.4D01.49D13.39D37.2D49.0
ileumC17.2C78.4D01.49D13.39D37.2D49.0
intestine, intestinal › small › ileumC17.2C78.4D01.49D13.39D37.2D49.0
intestine, intestinal › small › jejunumC17.1C78.4D01.49D13.39D37.2D49.0
jejunumC17.1C78.4D01.49D13.39D37.2D49.0
Meckel diverticulum, malignantC17.3C78.4D01.49D13.39D37.2D49.0

Patient EducationClinical

Benign Tumors

Tumors are abnormal growths in your body. They can be either benign or malignant. Benign tumors aren't cancer. Malignant ones are. Benign tumors grow only in one place. They cannot spread or invade other parts of your body. Even so, they can be dangerous if they press on vital organs, such as your brain.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Convert D13.39 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
211.2 Benign neoplasm sm bowel
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About D13.39Overview

Is D13.39 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report benign neoplasm of other parts of small intestine on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does D13.39 group to?

When benign neoplasm of other parts of small intestine is the principal diagnosis on an inpatient stay, it groups to MS-DRG 393, 394, 395, with relative weights from 0.6490 to 1.5993 depending on complications. Higher weights mean higher Medicare reimbursement.

What is the ICD-9 equivalent of D13.39?

Under the General Equivalence Mappings, benign neoplasm of other parts of small intestine converts to ICD-9-CM 211.2 (benign neoplasm sm bowel). The mapping is approximate, so confirm the match fits the documentation.

Footnotes

[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.