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    OpenPayerBilling CodesDiseases of peritoneum and retroperitoneumICD-10-CM k67-disorders-of-peritoneum
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    ICD-10-CM Code For Disorders Of Peritoneum In Infectious Diseases Classified Elsewhere: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group K67 includes peritoneal inflammations and disorders that arise as part of infectious diseases classified elsewhere, such as peritonitis associated with systemic or localized infections. These ICD-10-CM diagnosis codes are used to document clinical scenarios that capture the presence of peritoneal involvement, the infectious etiology when specified, and the severity or complications of the condition. Accurate coding within the ICD-10-CM K67 group supports proper claim adjudication and complete clinical documentation.

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    ICD-10-CM K67: Disorders Of Peritoneum In Infectious Diseases Classified Elsewhere Overview

    This code group represents infections and inflammatory disorders of the peritoneum that occur as manifestations of infectious diseases classified in other chapters of the International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM). These conditions target the peritoneal lining and adjacent retroperitoneal structures and may reflect systemic or localized infectious processes. Accurate coding is important for complete clinical documentation and can affect reimbursement through proper reporting of diagnosis complexity.

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    When to Use

    Use a code from this group when clinical documentation indicates peritoneal inflammation or infection that is directly associated with an infectious disease listed elsewhere in ICD-10-CM. These codes are appropriate when the peritoneal condition is a sequela or specific manifestation of another documented infectious diagnosis.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    K67Disorders of peritoneum in infectious diseases classified elsewhere

    DRG Codes

    5 rows

    DRG CodeDescription
    371Major Gastrointestinal Disorders and Peritoneal Infections with MCC
    372Major Gastrointestinal Disorders and Peritoneal Infections with CC
    373Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems

    Typical Clinical Scenarios

    • An adult patient presents to the emergency department with acute severe abdominal pain, fever, and signs of sepsis after a recent intra-abdominal infection (e.g., diverticulitis) or abdominal surgery. Imaging demonstrates diffuse peritoneal inflammation and the clinician documents peritoneal involvement as part of an infectious process originating elsewhere; a diagnosis from this group is assigned to capture peritoneal inflammatory disease in the setting of that infection. Typical codes: K67
    • An immunocompromised patient with a known chronic intra-abdominal infection (such as tuberculosis or chronic pelvic inflammatory disease) is evaluated for progressive abdominal distension, low-grade fever, and persistent abdominal tenderness; workup shows ongoing peritoneal inflammation related to the underlying infectious disease. A code from this group is used to record the chronic or subacute peritoneal disorder caused by the established infectious condition. Typical codes: K67
    • A hospitalized postoperative patient develops worsening abdominal pain, leukocytosis, and peritoneal signs several days after a bowel perforation repair; operative findings note purulent peritonitis as a complication of the primary infectious process. The peritoneal disorder is coded from this group to reflect the complication of an infectious disease affecting the peritoneum. Typical codes: K67

    Related Codes

    K65-PERITONITIS

    ICD-10-CM Code For Peritonitis: Group Overview

    K66-OTHER-DISORDERS-OF-PERITONEUM

    ICD-10-CM Code For Other Disorders Of Peritoneum: Group Overview

    K68-DISORDERS-OF-RETROPERITONEUM

    ICD-10-CM Code For Disorders Of Retroperitoneum: Group Overview

    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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