Supply codes, tech assistance, and host of other options help you report more accurate claims. Getting insurance claims paid for prescriptive medical devices such as contact lenses can be tricky. Insurance carriers aren't quick to reimburse for these, but by avoiding a few common errors, your contact lens claims stand a better chance of reaping rewards. Here is a quick guide to help you avoid the pitfalls that you may encounter when filing a contact lens claim. 1. Home In on Codes for Lens and Fitting When an ophthalmologist, rather than a technician, provides contact lens prescription and fitting, you should choose from the following codes, says David Gibson, OD, FAAO, a practicing optometrist in Lubbock, Texas: Example: Contact lens fitting, on the other hand, includes instructing and training the wearer. It also includes the incidental lens revision during the training period, the CPT manual states. 2. Remember Coding Options Change for Techs If a tech -- not an ophthalmologist -- provides the contact lens services, look to the following codes: 3. Watch Descriptor for Unilateral vs. Bilateral You have to be alert to whether you should bill contact lens procedures as bilateral or unilateral. Code 92310 specifies "both eyes," so if you only do one eye, code 92310 with modifier 52 (Reduced services), per CPT. But the codes for aphakic patients differ based on whether you fit one or both eyes. Example: 4. Consider Supply Codes and Charges CPT guidelines state that you may include contact lens supply as part of the fitting service, or you may report supply separately. To report a separate supply code, look to the V2500-V2599 series (Contact lens ...), which describe the materials you use for the case, says Joyce Ardrey, CPC, health systems consultant for the Oklahoma Association of Optometric Physicians in Oklahoma City. All of these V codes are monocular (per lens), so if you treat both eyes, you should report two units of the applicable V code. You may also append modifiers RT (Right side) and LT (Left side), depending on the payer's preference. 5. Treat Follow-Up as Office Visit To report the follow-up of successfully fitted extended-wear lenses, bill it as a general service and use a code such as 92012 (Ophthalmological services: medical examination and evaluation, with initiation or continuation of diagnostic and treatment program; intermediate, established patient). 6. Be Sure Your Documentation Makes the Grade The ophthalmologist needs to document the proper measurements for correct contact lens fitting, and document their findings for base curve, diameter, and power of the lens. As a precaution, you may document what type of lens you dispensed, the date, the dispensing person's signature, and the signature of the person picking up the lenses, but not every plan requires this. Example: Medicare requires the patient's signature but not the dispenser's. Still, good office policy would require the dispenser to initial and date the delivery of the lenses. And don't forget to document the diagnosis that supports medical necessity for the lenses. For example, an aphakic patient may merit one of the following codes: