Distinguish between poisonings, adverse effects to code correctly in ICD-10-CM

Why This Topic Matters

Medication-related diagnoses can be coded differently depending on intent, adherence, and documentation. Correct classification affects code selection, sequencing, and the completeness of the coded record.

Article Sections

1. Poisonings versus adverse effects

   This section compares the general concepts used to distinguish medication-related poisonings from adverse effects. It discusses the documentation cues that help determine how a case should be characterized.

2. Relationship between drug and condition

   This section addresses documentation and CDI considerations for linking a medication to a patient’s condition. It covers the kinds of details that help support accurate coding and query opportunities.

3. ICD-9-CM coding

   This section summarizes how medication-related events were approached under ICD-9-CM. It reviews the table-based structure, intent categories, and general reporting framework.

4. ICD-10-CM coding

   This section explains the ICD-10-CM framework for medication-related poisonings, adverse effects, and underdosing. It also notes how the code structure differs from ICD-9-CM at a high level.

5. Underdosing

   This section discusses the underdosing concept and the general documentation considerations involved. It covers how underdosing is categorized and how related reporting concepts are organized.

6. Patient noncompliance

   This section focuses on underdosing scenarios related to patient noncompliance and other contributing factors. It also addresses the broad reasons these situations may be documented in the record.