Diagnosis Code: 555.9

Short Description: Regional enteritis NOS

Long Description: Regional enteritis of unspecified site

Code Classification:

• Diseases of the digestive system (520–579)
  • Noninfective enteritis and colitis (555-558)
    • 555 Regional enteritis
      • 555.9 Regional enteritis NOS

Code Version: 2015 ICD-9-CM

References to Index of Diseases and Injuries

The code 555.9 has the following ICD-9-CM references to the Index of Diseases and Injuries

• Arthritis, arthritic (acute) (chronic) (subacute) 716.9
  • due to or associated with
    • enteritis NEC 009.1 [711.3]
      • regional (see also Enteritis, regional) 555.9 [713.1]
    • regional enteritis (see also Enteritis, regional) 555.9 [713.1]

• Crohn's disease (see also Enteritis, regional) 555.9

• Disease, diseased - see also Syndrome
  • Crohn's (intestine) (see also Enteritis, regional) 555.9

• Enteritis (acute) (catarrhal) (choleraic) (chronic) (congestive) (diarrheal) (exudative) (follicular) (hemorrhagic) (infantile) (lienteric) (noninfectious) (perforative) (phlegmonous) (presumed noninfectious) (pseudomembranous) 558.9
  • regional (of) 555.9
    • intestine
      • large (bowel, colon, or rectum) 555.1
        • with small intestine 555.2
      • small (duodenum, ileum, or jejunum) 555.0
        • with large intestine 555.2
  • segmental (see also Enteritis, regional) 555.9

Crosswalk Information

The code 555.9 converts into the following ICD-10 code(s):

Similar Codes

This page was last updated on: 10/1/2014

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