Summary & Overview
CPT 29000: Application of Halo-Type Body Cast for Cervical Immobilization
CPT code 29000 reports the application of a halo-type body cast — a sheepskin-lined rigid vest connected by bars to a halo ring affixed to the skull — used to immobilize the head and cervical spine after major spinal surgery or traumatic cervical injury. This code captures a specialized immobilization procedure that affects postoperative care pathways, inpatient resource use, and durable device management nationally.
Key payers included in the analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context for halo-type body casts, common service settings, and how this service relates to neighboring procedure codes such as other body cast applications. The publication highlights typical sites of service, expected clinical indications, and payer coverage patterns across major national plans.
The report provides benchmarks on utilization and billing practice patterns, clarifies coding adjacency to related body-cast and immobilization procedures, and summarizes policy considerations relevant to hospitals and surgical centers. The content is intended to inform coding professionals, hospital billing teams, and clinical leaders about how CPT code 29000 is used in practice and where it fits within spine and trauma care workflows.
Billing Code Overview
CPT code 29000 describes the application of a halo-type body cast: a sheepskin-lined rigid vest attached with bars to a halo (metal ring) secured to the skull with screws. The device immobilizes the head and cervical spine after major spinal surgery or traumatic injury and can be adapted to attach to the pelvis or femur when clinically indicated.
Service type: Immobilization device application; external fixation/support for cervical spine
Typical site of service: Inpatient hospital or ambulatory surgical facility
Clinical & Coding Specifications
Clinical Context
A 48-year-old male presents to the emergency department after a motor vehicle collision with severe cervical spine instability and associated upper extremity fractures. After urgent assessment including CT and orthopedic spine consultation, the patient undergoes cervical spine stabilization with placement of a halo ring and skull pins in the operating room. The provider then applies a sheepskin-lined rigid halo body cast (halo vest) that secures to the halo ring with bars to immobilize the head and neck during healing. The patient is admitted to an inpatient surgical unit for postoperative monitoring, pain control, pin-site care, and initiation of outpatient rehabilitation planning. Typical clinical workflow includes preoperative consent and imaging, intraoperative halo ring placement and vest application billed with 29000, postoperative wound and pin-site documentation, neurovascular checks, physical therapy/occupational therapy evaluation as appropriate for accompanying humeral or forearm fractures, and discharge planning with durable medical equipment orders and outpatient follow-up with Orthopaedic Surgery.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | (Not a standard HCPCS/CMS modifier for CPT; listed in input) | Use only if payer-specific; verify payer guidance. |