2027 ICD-10-CM Diagnosis Code K31.7Polyp of stomach and duodenum
ICD-10-CM Codes›K00–K95›K20-K31›K31
- Billable — Valid for Submission
- Not Chronic
K31.7 is a billable ICD-10-CM diagnosis code for polyp of stomach and duodenum. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 393 through 395. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Benign neoplasms and Other specified and unspecified disorders of stomach and duodenum.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Benign polyp of duodenum
- Duodenal polyposis
- Fundic gland polyposis of stomach
- Gastric adenocarcinoma and proximal polyposis of stomach
- Gastric polyp
- Gastric polyposis
- Hamartoma of stomach
- Hamartomatous polyp of stomach
- Hyperplastic duodenal polyp
- Hyperplastic polyp of intestine
- Hyperplastic polyp of small intestine
- Inflammatory fibroid polyps of stomach
- Polyp of duodenum
- Polyp of small intestine
- Polyposis of small intestine
- Solitary fundic gland polyp
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to K31.7: its own notes plus those printed at K31, block K20-K31, and Chapter 11. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- functional disorders of stomach
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- adenomatous polyp of stomach (D13.1)
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- hiatus hernia (K44.-)
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name K31.7, its category, or a range that includes it.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Stomach Disorders
Your stomach is an organ between your esophagus and small intestine. It is where digestion of protein begins. The stomach has three tasks. It stores swallowed food. It mixes the food with stomach acids. Then it sends the mixture on to the small intestine.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert K31.7 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About K31.7Overview
What is the ICD-10 code for polyp of stomach and duodenum?
The ICD-10-CM code for polyp of stomach and duodenum is K31.7 (sometimes written as K317). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is K31.7 (Other diseases of stomach and duodenum) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report polyp of stomach and duodenum on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does K31.7 group to?
When polyp of stomach and duodenum is the principal diagnosis on an inpatient stay, it groups to MS-DRG 394, 395, 393, with relative weights from 0.6379 to 1.5877 depending on complications. Higher weights mean higher Medicare reimbursement.
Can K31.7 be reported with D13.1?
Not as a rule. The Excludes1 note on K31.7 lists "adenomatous polyp of stomach (D13.1)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What is the ICD-9 equivalent of K31.7?
Under the General Equivalence Mappings, polyp of stomach and duodenum converts to ICD-9-CM 211.1 (benign neoplasm stomach). The mapping is approximate, so confirm the match fits the documentation.
