May CPT codes 66170 and 66172 trabeculectomy ab externo be reported in addition to 0191T (REVISED IN 2011 AND 2015) and 0192T (DELETED IN 2014) for insertion of anterior segment aqueous drainage device without extraocular reservoir? ...
Subscribe or sign in to view the full article.
Article Overview
This premium coding article addresses a glaucoma coding question involving CPT Category I and Category III procedure codes. It compares the broad procedural categories for trabeculectomy and anterior segment aqueous drainage device insertion, and discusses why these services are considered distinct by approach, technique, and anatomy. The article is useful for coders, auditors, and ophthalmology billing staff who need to understand how the guidance applies to glaucoma-related surgical reporting.
Why This Topic Matters
Glaucoma procedure coding can be nuanced when similar surgeries are performed in the same clinical setting. This article helps readers distinguish between related CPT codes and understand the scope of the official guidance without relying on the full premium text.
What You Will Learn
- How the article frames the coding question for glaucoma surgery reporting
- Which broad CPT code categories are discussed
- How the article distinguishes the procedural types at a high level
- What general guidance the article provides about reporting related eye procedures
Who Should Read This
- Medical coders
- Ophthalmology billers
- Compliance auditors
- Revenue cycle staff
- Physician practices
Codes Discussed
Subscribe or sign in to view the full article.

Quick, Current, Complete - www.findacode.com