How Will the Transition to ICD-10 Affect Urology Coding? An Analysis of ICD-9 Code Use from a Large Group Practice

Area of Science:

• Medical Coding
• Urology Practice Management

Background:

• The International Classification of Diseases-10-CM (ICD-10-CM) replaced ICD-9 on October 1, 2015, in the United States.
• This transition significantly altered medical encounter coding procedures.
• The impact varied across medical specialties and subspecialties.

Purpose of the Study:

• To evaluate the impact of the ICD-9 to ICD-10-CM code set transition on a large urology group.
• To analyze coding patterns in general urology and specific subspecialties.
• To identify challenges and opportunities for improved coding accuracy.

Main Methods:

• A retrospective review of International Classification of Diseases-9 (ICD-9) codes used in a urology group.
• Analysis of commonly used codes in office and hospital settings.
• Evaluation of coding patterns for men's health/infertility, pelvic floor/reconstruction, and pediatric urology subspecialists.

Main Results:

• The top 30 ICD-9 codes represented over 80% of all codes used in office and hospital settings.
• Direct 1:1 conversion rates from ICD-9 to ICD-10-CM varied, ranging from 36.7% to 60% for common codes.
• Subspecialists showed similar high concentrations of top codes, with 1:1 conversion rates between 40% and 56%.

Conclusions:

• Urologists must understand their specific coding practices for a successful ICD-9 to ICD-10-CM transition.
• A concentrated set of frequently used codes allows for targeted educational efforts.
• Enhanced documentation and coding education are crucial for reducing unspecified codes and improving overall accuracy.