K67 Disorders of peritoneum in infectious diseases classified elsewhere

Billable ICD-10-CM code, FY2026. Acts as a Major Complication or Comorbidity (MCC) as a secondary diagnosis.

Excludes1 (never code together)

• peritonitis in chlamydia (A74.81)
• peritonitis in diphtheria (A36.89)
• peritonitis in gonococcal (A54.85)
• peritonitis in syphilis (late) (A52.74)
• peritonitis in tuberculosis (A18.31)

Code first

• underlying disease, such as:
• congenital syphilis (A50.0)
• helminthiasis (B65.0 -B83.9)

Applies from K67 Disorders of peritoneum in infectious diseases classified elsewhere

Excludes1 (never code together)

• peritonitis in chlamydia (A74.81)
• peritonitis in diphtheria (A36.89)
• peritonitis in gonococcal (A54.85)
• peritonitis in syphilis (late) (A52.74)
• peritonitis in tuberculosis (A18.31)

Code first

• underlying disease, such as:
• congenital syphilis (A50.0)
• helminthiasis (B65.0 -B83.9)

Risk adjustment (HCC)

• CMS-HCC V28: HCC 78 — Intestinal Obstruction/Perforation
• CMS-HCC V22: HCC 33 — Intestinal Obstruction/Perforation
• ESRD V24: HCC 33

MS-DRG index

Defines the logic of DRG(s) 371-373 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 567.0 Peritonitis in infectious diseases classified elsewhere

Medicare Code Edits (MCE v43.1 (April 2026))

• Manifestation codes as principal diagnosis: Manifestation codes describe the manifestation of an underlying disease, not the disease itself, and are not allowed as principal diagnosis.

Diagnosis Index entries for K67

• Granuloma › peritoneum › due to ova of helminths NOS
• Peritonitis (adhesive) (bacterial) (fibrinous) (hemorrhagic) (idiopathic) (localized) (perforative) (primary) (with adhesions) (with effusion) › syphilitic › congenital (early)

Nearby codes

• K67 Disorders of peritoneum in infectious diseases classified elsewhere (this code)