Crystal's MCW Coder HubCPT Code 66984: Documentation & Billing Guide
🏥 66984: Intraocular Cataract Surgery, routine
⚡ Quick Reference
| Metric | Value | Notes |
|---|---|---|
| Common Mod | -50 | (Primary modifier for this service) |
| Global | 090 | (Major Surgery - requires -57/-79) |
| wRVU | 7.17 | |
| Assist | No | (Standard policy) |
🚧 Bundling & NCCI Edits
(What is INCLUDED in this code?)
- Includes: 66020 (Injection into anterior chamber), 66030 (Injection of medication), 66711 (Ciliary body destruction; cyclophotocoagulation, endoscopic), 67005 (Partial vitrectomy), and most anesthesia/local blocks.
- Mutually Exclusive: 66982 (Complex cataract surgery). You cannot bill both 66984 and 66982 for the same eye during the same session.
📝 MCW/Payer Specifics
- Medical Necessity: Documentation must support ophthalmology complexity.
- Mod -22: If applicable, look for >50% extra time/effort.
- Modifier Info: Ensure bilateral documentation (e.g., ‘both sides’ or ‘left and right’) is clear.
- Category: This is a OPHTHALMOLOGY specific procedure.
66984 - Extracapsular cataract removal with insertion of intraocular lens prosthesis (1 stage procedure), manual or mechanical technique (eg, irrigation and aspiration or phacoemulsification); without endoscopic cyclophotocoagulation. This is the standard “routine” cataract surgery. It involves removing the cloudy natural lens (cataract) and replacing it with an artificial intraocular lens (IOL). It is the most common ophthalmological surgical procedure.
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CPT 66984: Standard Cataract Surgery
Code Definition
- 66984: Extracapsular cataract removal with insertion of intraocular lens prosthesis (1 stage procedure), manual or mechanical technique (e.g., phacoemulsification).
- Context: This is the standard code for routine cataract surgery. If the procedure requires complex devices (e.g., iris hooks, Malyugin ring) or techniques, see 66982.
Global Period & RVU
- Global Period: 090 Days (Major Surgery).
- 2026 Adjustment: Be aware that this procedural code faces a -2.5% work RVU efficiency adjustment effective in 2026.
Bundled Services (Do Not Bill Separately)
- Injections: Antibiotics, steroids, or NSAIDs injected during the procedure (e.g., 67028, 68200) are bundled.
- Iridectomy/Vitrectomy: If performed to complete the cataract extraction (e.g., for pupil size or clearing vitreous prolapse), they are integral. Only bill vitrectomy separately if it is for a distinct, unrelated pathology.
- Lateral Canthotomy: Generally bundled if performed for exposure.
- Refraction (92015): Not included in the surgical package but is a non-covered service for Medicare. Bill to the patient.
Mutually Exclusive Codes (NCCI)
- 66982 (Complex Cataract): You cannot bill 66984 and 66982 on the same eye.
- MIGS Combination Codes: If placing a stent (e.g., iStent, Hydrus) during the same session, do not bill 66984. You must use 66991 (Cataract + MIGS).
- Retinal Detachment Repair: Do not bill 66984 with 67108 or 67113; those codes include lens removal.
Key Modifiers
- -RT / -LT: Mandatory to identify the eye.
- -79 (Unrelated Procedure): Essential when operating on the second eye during the 90-day global period of the first eye.
- -55 (Post-operative Management): Use for co-management (e.g., OD providing post-op care). Requires documented transfer dates.
- -54 (Surgical Care Only): Surgeon bills this when transferring post-op care.