ICD-10 code for abdominal actinomycosis

The ICD-10-CM code for abdominal actinomycosis is A42.1 (Abdominal actinomycosis).

Within A42 (actinomycosis), A42.1 is specifically for abdominal actinomycosis. Related codes cover pulmonary actinomycosis (A42.0), Cervicofacial actinomycosis (A42.2), actinomycotic sepsis (A42.7), other forms of actinomycosis (A42.8) and unspecified (A42.9).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 371 (Major Gastrointestinal Disorders and Peritoneal Infections with MCC, relative weight 1.7089), DRG 372 (Major Gastrointestinal Disorders and Peritoneal Infections with CC, relative weight 0.9964), DRG 373 (Major Gastrointestinal Disorders and Peritoneal Infections without CC/MCC, relative weight 0.6941), DRG 974 (HIV with Major Related Condition with MCC, relative weight 3.0506), DRG 975 (HIV with Major Related Condition with CC, relative weight 1.3252) and DRG 976 (HIV with Major Related Condition without CC/MCC, relative weight 0.8124), in MDC 06 (Diseases and Disorders of the Digestive System) and MDC 25 (Human Immunodeficiency Virus Infections), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.