K00–K95
Diseases of the Digestive System
GERD, IBS, liver disease, appendicitis
K60.521
Anorectal fistula, complex, initial
Billable
K60.522
Anorectal fistula, complex, persistent
Billable
K60.523
Anorectal fistula, complex, recurrent
Billable
K60.529
Anorectal fistula, complex, unspecified
Billable
K61
Abscess of anal and rectal regions
Non-billable
K61.0
Anal abscess
Billable
K61.1
Rectal abscess
Billable
K61.2
Anorectal abscess
Billable
K61.3
Ischiorectal abscess
Non-billable
K61.31
Horseshoe abscess
Billable
K61.39
Other ischiorectal abscess
Billable
K61.4
Intrasphincteric abscess
Billable
K61.5
Supralevator abscess
Billable
K62
Other diseases of anus and rectum
Non-billable
K62.0
Anal polyp
Billable
K62.1
Rectal polyp
Billable
K62.2
Anal prolapse
Billable
K62.3
Rectal prolapse
Billable
K62.4
Stenosis of anus and rectum
Billable
K62.5
Hemorrhage of anus and rectum
Billable
K62.6
Ulcer of anus and rectum
Billable
K62.7
Radiation proctitis
Billable
K62.8
Other specified diseases of anus and rectum
Non-billable
K62.81
Anal sphincter tear (healed) (nontraumatic) (old)
Billable
K62.82
Dysplasia of anus
Billable
K62.89
Other specified diseases of anus and rectum
Billable
K62.9
Disease of anus and rectum, unspecified
Billable
K63
Other diseases of intestine
Non-billable
K63.0
Abscess of intestine
Billable
K63.1
Perforation of intestine (nontraumatic)
Billable
K63.2
Fistula of intestine
Billable
K63.3
Ulcer of intestine
Billable
K63.4
Enteroptosis
Billable
K63.5
Polyp of colon
Billable
K63.8
Other specified diseases of intestine
Non-billable
K63.81
Dieulafoy lesion of intestine
Billable
K63.82
Intestinal microbial overgrowth
Non-billable
K63.821
Small intestinal bacterial overgrowth
Non-billable
K63.8211
Small intestinal bacterial overgrowth, hydrogen-subtype
Billable
K63.8212
Small intestinal bacterial overgrowth, hydrogen sulfide-subtype
Billable
K63.8219
Small intestinal bacterial overgrowth, unspecified
Billable
K63.822
Small intestinal fungal overgrowth
Billable
K63.829
Intestinal methanogen overgrowth, unspecified
Billable
K63.89
Other specified diseases of intestine
Billable
K63.9
Disease of intestine, unspecified
Billable
K64
Hemorrhoids and perianal venous thrombosis
Non-billable
K64.0
First degree hemorrhoids
Billable
K64.1
Second degree hemorrhoids
Billable
K64.2
Third degree hemorrhoids
Billable
K64.3
Fourth degree hemorrhoids
Billable
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