Ophthalmology and Optometry Coding Alert

Bonus: Learn when you can, and should, report 92135 more than once

When your ophthalmologist performs optical coherence tomography (OCT) retinal imaging procedures, you have only one code that describes this service, so your coding and getting paid should be easy, right? Not always.
 
There are three common pitfalls coders fall into when reporting 92135 (Scanning computerized ophthalmic diagnostic imaging [e.g., scanning laser] with interpretation and report, unilateral), experts say. Follow these expert tips to ensure your OCT coding doesn't end up trapped by any of the common mistakes. Rely on Documented Order and Necessity For you to code 92135 and get paid, your ophthalmologist must include a documented order for OCT in the patient's chart.

-Our Medicare carrier will cover 92135 annually for glaucoma or glaucoma suspects (365.00-365.9), every six months for low tension glaucoma (365.12) and more frequently based on the patient's specific circumstance,- says Becky Zellmer, CPC, MBS, CBCS, provider educator/chart review for Prevea Health in Green Bay, Wis. -For this reason, the documentation is key to getting reimbursed.-

You should also check the documentation for the reason the ophthalmologist orders the diagnostic OCT. The reason stated in the patient's record has to demonstrate medical necessity for payers to reimburse you on 92135.

Example: A patient presents with increased intraocular pressure in her right eye (365.00). The ophthalmologist orders an OCT to help determine if the patient is in the early stages of glaucoma. The presenting symptom constitutes medical necessity, and you should report 92135.

Don't miss: If the patient needs to come back for referral or scheduling reasons, the physician should document the reason he ordered the test in the previous dictations. If the physician does the OCT the same day, the ophthalmologist should still document the test order and the reason for the test.

In addition: For you to submit 92135, your ophthalmologist must include a written interpretation and report that details any findings and observations he made from the imaging report. The interpretation of the test results should also include any issues of the test's quality, reliability of the findings, and any implications for treatment or further care.

Modify Your Thinking on Bilateral OCT An OCT test is inherently unilateral. The fee allotted for 92135 only accounts for what is involved in scanning one eye.

When your ophthalmologist performs the scan bilaterally, you can report the procedure bilaterally, Zellmer says. You must report 92135 either on two lines with modifiers RT (Right side) and LT (Left side) appended or on one line with modifier 50 (Bilateral procedure) appended.

Remember: Most Medicare carriers prefer 92135-50, whereas private carriers reimburse more consistently with the RT and LT modifiers. Check with your carriers to find out which way you should be reporting [...]