MDC 18 Infectious & Parasitic Diseases, Systemic or Unspecified Sites is broken down into subgroups, listed here from most to least resource intensive. If a patient received qualifying treatment in listed in more than one subgroup, the first one listed will determine the DRG assigned to the patient.

To determine if a patient qualifies for a subgroup, click on the subgroup name and check the requirements listed. Typically, each subgroup requires one of a serious of ICD-10-CM diagnostic codes or PCS codes to have been assigned to the patient.

To qualify for any subsection in this MDC, the patient's primary diagnostic code must be included in this list.

Patients who qualify for Viral Illness will be grouped into a DRG according to the logic below. View detailed requirements for qualifying for the DRGs in this subsection.

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