2026 ICD-10-CM Diagnosis Code K68.3Retroperitoneal hematoma

ICD-10-CM Codes›K00–K95›K65-K68›K68

ICD-10-CM K68.3
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

K68.3 is a billable ICD-10-CM diagnosis code for retroperitoneal hematoma. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 371 through 373. Coders also document this condition as nontraumatic retroperitoneal hematoma. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified gastrointestinal disorders.

Code Identity

ICD-10-CM Code
K68.3
Billable Status
Yes — Valid for Submission
Code Describes
Retroperitoneal hematoma
Short Description
Retroperitoneal hematoma
Same as the full description in the CMS dataset.
Parent Code
K68
Disorders of retroperitoneum

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK65-K68Diseases of peritoneum and retroperitoneum
CategoryK68Disorders of retroperitoneum
This CodeK68.3Retroperitoneal hematoma

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Nontraumatic retroperitoneal hematoma
  • Retroperitoneal hemorrhage
  • Traumatic retroperitoneal hematoma

Tabular List NotesGuidance

Coding notes and annotation back-references applicable to this code.

Inclusion Terms

  • Retroperitoneal hemorrhage

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Hematoma(traumatic) (skin surface intact)
      • retroperitoneal (nontraumatic)
    • Hemorrhage, hemorrhagic(concealed)
      • retroperitoneal

Clinical ClassificationClinical

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

CCSR DIG025
Other specified and unspecified gastrointestinal disorders
Default principal diagnosis: inpatient Yes · outpatient Yes

Code History & ChangesHistory

Replacement K68.3 replaces the following previously assigned code(s):

  • K68.9 - Other disorders of retroperitoneum
FY 2024AddedAdded to the ICD-10-CM code setEffective October 1, 2023.
FY 2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About K68.3Overview

Is K68.3 (Disorders of retroperitoneum) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report retroperitoneal hematoma on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

What MS-DRG does K68.3 group to?

When retroperitoneal hematoma is the principal diagnosis on an inpatient stay, it groups to MS-DRG 371, 372, 373, with relative weights from 0.7274 to 1.7731 depending on complications. Higher weights mean higher Medicare reimbursement.

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.