ICD-9-CM

558 Other and unspecified noninfectious gastroenteritis and colitis Excludes: infectious: colitis, enteritis, or gastroenteritis (009.0-009.1) diarrhea (009.2-009.3)
558.1: Gastroenteritis and colitis due to radiation Radiation enterocolitis
558.2: Toxic gastroenteritis and colitis Use additional E code to identify cause
558.3: Allergic gastroenteritis and colitis Use additional code to identify type of food allergy (V15.01-V15.05) 558.4 Eosinophilic gastroenteritis and colitis
558.9: Other and unspecified noninfectious gastroenteritis and colitis Colitis, NOS, dietetic, or noninfectious Enteritis, NOS, dietetic, or noninfectious Gastroenteritis, NOS, dietetic, or noninfectious Ileitis, NOS, dietetic or noninfectious Jejunitis, NOS, dietetic, or noninfectious Sigmoiditis, NOS, dietetic, or noninfectious

558 Other and unspecified noninfectious gastroenteritis and colitis

Excludes:

infectious:

colitis, enteritis, or gastroenteritis (009.0-009.1)

diarrhea (009.2-009.3)

Radiation enterocolitis

Use additional E code to identify cause

Use additional code to identify type of food allergy (V15.01-V15.05)

558.4 Eosinophilic gastroenteritis and colitis