Trends in ICD-10-CM-Coded Administrative Datasets for Injury Surveillance and Research.

Area of Science:

• Public Health
• Health Informatics
• Medical Coding

Background:

• Accurate injury surveillance relies on administrative datasets for billing and reimbursement.
• Existing research focuses on case definitions for identifying injury cases.
• Clinical coding trends may affect the consistency and quality of surveillance data.

Approach:

• Conducted a literature review and interviewed coding experts to identify coding trends.
• Analyzed data from two hospitals comparing physician coding versus professional coding for emergency department data.
• Assessed the proportion of missing external cause of injury codes and statistical significance.

Key Points:

• Clinical Documentation Improvement (CDI) audits may impact injury data integrity.
• Physician self-coding in emergency departments showed higher rates of external cause coding.
• Widespread use of "copy and paste" in electronic health records may inflate reported injury data.

Conclusions:

• Financial motivations in healthcare administration can compromise injury surveillance data consistency.
• The integrity of surveillance findings may be misled by current coding practices.
• Further investigation is essential to ensure the reliability of injury surveillance data.