F91.1

Clinical notes

Documentation support

General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.

• •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.

ICD-9-CM equivalent

Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents. Verify before use in billing.

• 31200Approximate match
• 31281Approximate match
• 31201Approximate match
• 31202Approximate match
• 31203Approximate match

Associated MS-DRGs

F91.1 can serve as the principal diagnosis for these Medicare Severity Diagnosis-Related Groups.

Informational only — actual DRG assignment also depends on procedures, complications/comorbidities (CC/MCC), discharge status, and payer-specific rules not reflected here.

• DRG 870Septicemia or Severe Sepsis with MV >96 Hours
• DRG 871Septicemia or Severe Sepsis without MV >96 Hours with MCC
• DRG 872Septicemia or Severe Sepsis without MV >96 Hours without MCC
• DRG 886Behavioral and Developmental Disorders