Determine when to appropriately report additional diagnoses

Why This Topic Matters

Correctly identifying additional diagnoses can change whether a case groups to a higher- or lower-weighted MS-DRG. The topic is especially relevant for hospital coders, CDI professionals, and others working with inpatient reimbursement and diagnosis reporting.

Article Sections

1. When to report an additional diagnosis

   This section reviews the broad criteria used to determine whether a condition is reportable as an additional diagnosis in the inpatient setting. It also references guidance sources and general considerations used in facility coding workflows.

2. Conditions that act as their own CC/MCC

   This section discusses how combination diagnosis coding can affect CC and MCC capture in ICD-10-CM. It contrasts older and newer coding approaches and explains the operational impact on inpatient grouping.