Is K66.1 a billable ICD-10 code?

Yes. K66.1 (Hemoperitoneum) is billable and can be used for insurance claims. Always verify payer-specific requirements.

K66.1 ✓ Billable

Hemoperitoneum

Q: What is ICD-10 code K66.1?

ICD-10-CM code K66.1 stands for "Hemoperitoneum". 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

K66.1

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 K66.1?

ICD-10-CM code K66.1 represents Hemoperitoneum. It is a billable diagnosis code in the Diseases of the Digestive System chapter, effective October 1, 2025 – September 30, 2026.

Is K66.1 billable?

Yes. K66.1 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is K66.1 in?

K66.1 belongs to the Diseases of the Digestive System chapter (K00–K95) of ICD-10-CM.

Related codes in the K66 category

K66 Other disorders of peritoneum Non-billable K66.0 Peritoneal adhesions (postprocedural) (postinfection) Billable K66.8 Other specified disorders of peritoneum Billable K66.9 Disorder of peritoneum, unspecified Billable

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