K66.1

K66.1: Hemoperitoneum

Billable / specific codeICD-10-CM

K66.1 is a billable, specific ICD-10-CM code for hemoperitoneum. It is valid for submission on a claim.

Check K66.1 with the rest of the claim: free scrubber

Excludes1: never code together

These conditions cannot occur together. Billing both on the same encounter is a denial.

traumatic hemoperitoneum (S36.8-)

Excludes2: not included here, but may coexist

The excluded condition is not part of this code, but a patient can have both. You may code both.

retroperitoneal hematoma (K68.3)
retroperitoneal hemorrhage (K68.3)

Inclusion terms

Alternative wordings a physician may use in the chart for this same code.

Peritoneal hematoma
Peritoneal hemorrhage

Excludes2 inherited from the categories above K66.1

Not part of this code, but both may be coded when both are present.

Written on K66: Other disorders of peritoneum

ascites (R18.-)
peritoneal effusion (chronic) (R18.8)

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

K66.1 is named in 1 Medicare coverage policy: 1 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A56421Billing and Coding: CT of the Abdomen and Pelvis

Alphabetic index entries that lead here

Hemoperitoneum
Hematoma›peritoneal
Hemorrhage, hemorrhagic›intraperitoneal
Hemorrhage, hemorrhagic›mesentery
Hemorrhage, hemorrhagic›omentum
Hemorrhage, hemorrhagic›peritoneum, peritoneal
Hemorrhage, hemorrhagic›intrapelvic›male

Code history

Unchanged in every release from FY2024 to FY2027.