I09.81

Clinical notes

Documentation support

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

• •If the associated manifestation or related condition noted above is also documented, an additional code should be reported alongside this one.
• •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.

• 39891

Associated MS-DRGs

I09.81 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 205Other Respiratory System Diagnoses with MCC
• DRG 206Other Respiratory System Diagnoses without MCC
• DRG 291Heart Failure and Shock with MCC
• DRG 292Heart Failure and Shock with CC
• DRG 293Heart Failure and Shock without CC/MCC