ICD-10 code for meningococcemia

The ICD-10-CM code for meningococcemia is A39.4 (Meningococcemia, unspecified). The official index lists 2 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A39.4.

Within A39, choose A39.4 (Meningococcemia, unspecified) only when documentation doesn't support a more specific option: meningococcal meningitis (A39.0), Waterhouse-Friderichsen syndrome (A39.1), acute meningococcemia (A39.2), chronic meningococcemia (A39.3), meningococcal heart disease (A39.5), other meningococcal infections (A39.8) and unspecified (A39.9).

As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" 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 870 (Septicemia or Severe Sepsis with MV >96 Hours, relative weight 6.9408), DRG 871 (Septicemia or Severe Sepsis without MV >96 Hours with MCC, relative weight 1.932) and DRG 872 (Septicemia or Severe Sepsis without MV >96 Hours without MCC, relative weight 1.0066), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.