PDPM Documentation Essentials for the IDT: Primary Diagnosis Determination and Section I-Slide Handouts: Primary Diagnosis Determination and Section I

Slide Handouts: Primary Diagnosis Determination and Section I

Pdf Summary

This module explains how to support PDPM coding through accurate, timely documentation, with a focus on selecting the primary diagnosis and completing MDS Section I. It emphasizes that physician/NPP documentation must clearly describe diagnoses using specific details such as type, onset, cause, location, laterality, severity, acuity, and complications. Coders may only code what is documented; they cannot infer diagnoses from medications, family reports, or a problem listed only in past medical history.<br /><br />The primary diagnosis is the condition that best explains the SNF admission and the main reason for skilled services. It may differ from the hospital discharge diagnosis and can change during the stay. Two case studies illustrate how the IDT should determine the primary diagnosis based on current skilled needs: in one case, pneumonia is primary because it requires IV antibiotics, oxygen, and respiratory monitoring; in another, a CVA with hemiparesis is primary because it drives nursing and therapy services across disciplines.<br /><br />The module also reviews other diagnoses that affect PDPM calculations, including comorbidities and conditions relevant to clinical category, SLP, and NTA. It notes the importance of looking back 60 days for diagnosis identification and 7 days for active status, and recommends using provider queries when documentation is unclear or incomplete.<br /><br />Additional guidance is provided for sepsis/septicemia coding, support from nursing, therapy, dietitian, and social services documentation, and the role of BMI documentation in PDPM calculations. Finally, it stresses interdisciplinary care planning, where all team members align goals and interventions with active diagnoses and skilled services.

Keywords

PDPM coding

primary diagnosis

MDS Section I

physician documentation

SNF admission

skilled services

comorbidities

sepsis coding

BMI documentation

interdisciplinary care planning