A06.1 Chronic intestinal amebiasis

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applies from A06 Amebiasis

Includes

• infection due to Entamoeba histolytica

Excludes1 (never code together)

• other protozoal intestinal diseases (A07.-)

Excludes2 (not included here)

• acanthamebiasis (B60.1-)
• Naegleriasis (B60.2)

MS-DRG index

Defines the logic of DRG(s) 371-373 in MDC 06.

Approximate ICD-9-CM (GEMs)

• 006.1 Chronic intestinal amebiasis without mention of abscess

Code annotations containing back-references to A06.1

Back-references to A06

• Type 2 Excludes: P37 Other congenital infectious and parasitic diseases ("infectious neonatal diarrhea (A00-A09)")

Diagnosis Index entries for A06.1

• Amebiasis › chronic (intestine)
• Diarrhea, diarrheal (disease) (infantile) (inflammatory) › amebic › chronic
• Dysentery, dysenteric (catarrhal) (diarrhea) (epidemic) (hemorrhagic) (infectious) (sporadic) (tropical) › amebic › chronic
• Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) › amebic (acute) › chronic
• Ulcer, ulcerated, ulcerating, ulceration, ulcerative › amebic (intestine)
• Ulcer, ulcerated, ulcerating, ulceration, ulcerative › intestine, intestinal › amebic

Nearby codes

• A06 Amebiasis
• A06.0 Acute amebic dysentery
• A06.1 Chronic intestinal amebiasis (this code)
• A06.2 Amebic nondysenteric colitis
• A06.3 Ameboma of intestine
• A06.4 Amebic liver abscess
• A06.5 Amebic lung abscess
• A06.6 Amebic brain abscess