K66.8

Other specified disorders of peritoneum

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 10 never code together

K66code

Excludes2

Excludes2

certain conditions originating in the perinatal period (P04-P96)P04-P96
certain infectious and parasitic diseases (A00-B99)A00-B99
complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
neoplasms (C00-D49)C00-D49
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes

No further instructional notes apply.

Index entries leading here 6

Granuloma L92.9
- abdomen K66.8
- peritoneum K66.8
Cyst (colloid) (mucous) (simple) (retention)
- omentum (lesser) K66.8
- peritoneum K66.8
- mesentery, mesenteric K66.8
Disease, diseased — see also Syndrome
- peritoneum K66.9
  - specified NEC K66.8
Frozen T69.9
- pelvis (female) N94.89
  - male K66.8
Rupture, ruptured
- mesentery (nontraumatic) K66.8
Pneumatosis
- peritonei K66.8

Alongside this code 3 same parent — K66

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.