K66.8

K66.8: Other specified disorders of peritoneum

Billable / specific codeICD-10-CM

K66.8 is a billable, specific ICD-10-CM code for other specified disorders of peritoneum. It is valid for submission on a claim.

Check K66.8 with the rest of the claim: free scrubber

Excludes2 inherited from the categories above K66.8

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

K66.8 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

Cyst›mesentery, mesenteric
Cyst›omentum(lesser)
Cyst›peritoneum
Granuloma›abdomen
Granuloma›peritoneum
Pneumatosis›peritonei
Rupture, ruptured›mesentery(nontraumatic)
Disease, diseased›peritoneum›specified NEC
Frozen›pelvis›male

Code history

Unchanged in every release from FY2024 to FY2027.