2026 ICD-10-CM Diagnosis Code K68Disorders of retroperitoneum

ICD-10-CM Codes›K00–K95›K65-K68›K68

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

K68 is a non-billable ICD-10-CM category code for disorders of retroperitoneum, so it cannot be submitted on claims. Use a more specific code from this category instead, such as K68.11, K68.12, K68.19, and K68.2.

Code Identity

ICD-10-CM Code
K68
Billable Status
No — Non-Billable Category
Code Describes
Disorders of retroperitoneum
Short Description
Disorders of retroperitoneum
Same as the full description in the CMS dataset.
Chapter
K65-K68
Diseases of peritoneum and retroperitoneum

Code Classification

ChapterK00–K95Diseases of the digestive system
SectionK65-K68Diseases of peritoneum and retroperitoneum
CategoryK68Disorders of retroperitoneum
This CodeK68Disorders of retroperitoneum

Specific Coding for Disorders of retroperitoneumOverview

Non-specific codes like K68 require more characters. Use one of these billable codes instead:

  • K68.1 for Retroperitoneal abscess

  • Use K68.11 for Postprocedural retroperitoneal abscess

  • Use K68.12 for Psoas muscle abscess

  • Use K68.19 for Other retroperitoneal abscess

  • Use K68.2 for Retroperitoneal fibrosis

  • Use K68.3 for Retroperitoneal hematoma

  • Use K68.9 for Other disorders of retroperitoneum

Patient EducationClinical

Peritoneal Disorders

Your peritoneum is the tissue that lines your abdominal wall and covers most of the organs in your abdomen. A liquid, peritoneal fluid, lubricates the surface of this tissue.

Read the full article at MedlinePlus

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

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 K68Overview

Is K68 (Disorders of retroperitoneum) a billable code?

No. This is a category header that groups the codes for disorders of retroperitoneum, and headers cannot be submitted on claims. Claims for disorders of retroperitoneum need a more specific code from this category, such as K68.11, K68.12, and K68.19.