Selecting the right principal diagnosis

Why This Topic Matters

Principal diagnosis selection affects record review priorities, MS-DRG assignment, quality reporting review, and query opportunities. Understanding the governing sources helps teams reduce avoidable disagreement and apply sequencing guidance consistently.

Article Sections

1. Definition

   Introduces the principal diagnosis concept and the general considerations used to assess whether a condition fits the admission context. It focuses on the broad relationship between the admission, the workup, and the diagnosis ultimately chosen.

2. Coding conventions

   Reviews how coding conventions influence sequencing when more than one diagnosis is under consideration. The section discusses the role of tabular and index instructions in determining order.

3. The Official Guidelines for Coding and Reporting

   Summarizes the guideline framework that governs principal diagnosis selection and related sequencing situations. It also notes several categories of admission scenarios addressed within the official guidance.

4. AHA Coding Clinic guidance

   Describes the role of Coding Clinic as an additional source of sequencing guidance. It emphasizes using published advice to resolve uncertainty and support consistent review.

5. Resolving conflict in sequencing

   Covers how CDI and coding teams may compare working and final DRGs and discuss differences in sequencing interpretation. The section focuses on reconciliation, communication, and when additional review may be needed.