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Diagnosis Code


Code Information

Diagnosis Code: A42.1

Short Description: Abdominal actinomycosis

Long Description: Abdominal actinomycosis

The code A42.1 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Other bacterial diseases (A30-A49)
      • Actinomycosis (A42)
        • A42.1 Abdominal actinomycosis

Code Version: 2022 ICD-10-CM


  • Abdominal actinomycosis
  • Actinomycosis of cecum
  • Actinomycotic colitis
  • Actinomycotic enteritis of intestine
  • Actinomycotic enteritis of small intestine
  • Bacterial hepatitis
  • Hepatic actinomycosis
  • Ileocecal actinomycosis
  • Typhlitis

Diagnostic Related Group(s)

The code A42.1 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Major Gastrointestinal Disorders And Peritoneal Infections With Mcc (371)
  • Major Gastrointestinal Disorders And Peritoneal Infections With Cc (372)
  • Major Gastrointestinal Disorders And Peritoneal Infections Without Cc/mcc (373)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A42.1 Right Arrow 039.2 Abdominal actinomycosis

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
A42 Actinomycosis
A42.0 Pulmonary actinomycosis
A42.2 Cervicofacial actinomycosis
A42.7 Actinomycotic sepsis
A42.8 Other forms of actinomycosis
A42.81 Actinomycotic meningitis
A42.82 Actinomycotic encephalitis
A42.89 Other forms of actinomycosis
A42.9 Actinomycosis, unspecified

This page was last updated on: 10/1/2023