567 Peritonitis and retroperitoneal infections
Excludes:
peritonitis:
benign paroxysmal (277.31)
pelvic, female (614.5, 614.7)
periodic familial (277.31)
puerperal (670)
with or following:
abortion (634-638 with .0, 639.0)
appendicitis (540.0-540.1)
ectopic or molar pregnancy (639.0)