Summary & Overview
CPT 67399: Unlisted Extraocular Muscle Procedure
CPT code 67399 is the unlisted procedure code used for surgeries on the extraocular muscles when no specific CPT code applies. It captures atypical or novel ophthalmic muscle procedures and is important for accurate billing and clinical documentation when standard codes do not reflect the work performed. Nationally, use of unlisted codes like 67399 affects claims adjudication, medical record requirements, and the need for supporting operative reports.
This analysis covers major national payers: Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of payer coverage considerations, common modifiers associated with reporting, typical places of service, and the clinical context in which 67399 is applied. The publication outlines what to expect during claims processing for unlisted extraocular muscle procedures, documentation elements that payers commonly request, and comparisons to related ophthalmic procedure codes where relevant.
The content is geared to billing professionals, practice managers, and clinicians involved in ophthalmic surgery. It provides benchmarks and policy summaries where available and flags areas where input data was not provided. The goal is to clarify the role of CPT code 67399 in clinical billing workflows and payer interactions at a national level.
Billing Code Overview
CPT code 67399 is an unlisted procedure code for surgery on the extraocular muscles, used to report eye muscle procedures that do not have a specific CPT code. This code is intended for procedures involving the muscles that control eye movement when no established code accurately describes the service provided.
Service Type: Ophthalmic surgical procedure on extraocular muscles
Typical Site of Service: Hospital operating room, ambulatory surgery center, or ophthalmic surgical suite
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A 28-year-old patient presents to an ophthalmology surgical practice with symptomatic, complex strabismus after prior extraocular muscle surgery and trauma. Clinical assessment documents diplopia, abnormal ocular alignment, and restrictive motility of the affected eye. After discussion, the surgeon plans a revision or atypical extraocular muscle procedure that does not have a dedicated CPT code (for example, muscle elongation with spacer material, complex reattachment, or transposition variation). The patient is evaluated preoperatively in the clinic, receives same-day surgical consent and anesthesia clearance, and is scheduled in an ambulatory surgery center or hospital outpatient operating room. The operative workflow includes preoperative marking, general anesthesia, operative exploration of the involved extraocular muscles, performance of the unlisted muscle procedure, hemostasis, and postoperative recovery. Intraoperative photography or video may be obtained for documentation. Billing uses 67399 to report the unlisted extraocular muscle procedure; documentation must describe the procedure steps, time, and distinct rationale. Typical sites of service are an ambulatory surgery center (ASC) or hospital outpatient department (HOPD). Typical postoperative follow-up includes same-day recovery assessment and clinic visits for motility and alignment checks over 1–3 months.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
22 | Increased Procedural Services |