Is K65.0 a billable ICD-10 code?

Yes. K65.0 (Generalized (acute) peritonitis) is billable and can be used for insurance claims. Always verify payer-specific requirements.

K65.0 ✓ Billable

Generalized (acute) peritonitis

Q: What is ICD-10 code K65.0?

ICD-10-CM code K65.0 stands for "Generalized (acute) peritonitis". It is a billable code in the Diseases of the Digestive System chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Diseases of the Digestive System

Code

K65.0

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Diseases of the Digestive System

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code K65.0?

ICD-10-CM code K65.0 represents Generalized (acute) peritonitis. It is a billable diagnosis code in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.

Is K65.0 billable?

Yes. K65.0 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is K65.0 in?

K65.0 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.

Related codes in the K65 category

K65 Peritonitis Non-billable K65.1 Peritoneal abscess Billable K65.2 Spontaneous bacterial peritonitis Billable K65.3 Choleperitonitis Billable K65.4 Sclerosing mesenteritis Billable K65.8 Other peritonitis Billable K65.9 Peritonitis, unspecified Billable

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