CPT 21725: Sternocleidomastoid Release for Torticollis
CPT code 21725 denotes surgical division of the sternocleidomastoid muscle to correct torticollis, with application of a postoperative cast to maintain neck alignment. This procedure is nationally relevant because it addresses functional impairment and potential developmental consequences in pediatric and adult patients with persistent, symptomatic torticollis. Management often requires coordination among surgeons, anesthesiology, and rehabilitation clinicians.
Key payers covered in this overview include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers can expect a concise account of the clinical intent of the code, where the service is typically delivered, and what types of measures and benchmarks are commonly evaluated for surgical neck procedures. The publication summarizes common billing considerations, typical sites of service, and how payers generally categorize surgical release procedures for torticollis. It also highlights clinical context such as indications for surgical release and immediate postoperative immobilization.
This summary serves clinical coders, billing staff, and policy analysts who need a clear, national-level description of CPT code 21725, its clinical application, and the payer landscape relevant to surgical management of torticollis.
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Billing Code Overview
CPT code 21725 describes a surgical procedure in which the provider divides the sternocleidomastoid muscle to treat torticollis, a condition that produces a tilted or stiff neck from muscle spasm. The procedure includes application of a cast to hold the neck in place following release.
Service type: Surgical release of sternocleidomastoid muscle for torticollis
Typical site of service: Operating room or ambulatory surgical center with post-anesthesia recovery, with immediate postoperative immobilization using a cast.
Clinical & Coding Specifications
Clinical Context
A 6-month-old infant presents with persistent right-sided congenital muscular torticollis characterized by a head tilt to the right, limited left neck rotation, and a palpable tightness of the right sternocleidomastoid muscle despite 3 months of conservative management including stretching and physical therapy. After multidisciplinary evaluation by a pediatrician and pediatric orthopedic or pediatric otolaryngology specialist, the decision is made to perform a surgical release of the tight sternocleidomastoid muscle. The clinical workflow includes preoperative evaluation (history, focused neck exam, imaging if indicated), informed consent, general anesthesia, a transverse or longitudinal incision in the neck, division of the sternocleidomastoid tendon/muscle (selective bipolar or unipolar release as clinically indicated), hemostasis, and application of a cervical immobilization device or cast to maintain corrected head position. Postoperative care includes pain control, wound care, outpatient physical therapy for range-of-motion and strengthening, and follow-up visits to monitor alignment and healing. Typical sites of service are hospital operating room or ambulatory surgical center. The service type is surgical head/neck procedure for congenital muscular torticollis.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
52 | Reduced services | Use when the procedure is partially reduced or not completed as originally planned (e.g., limited release due to anatomic findings). |
53 | Discontinued procedure | Use when the procedure is started but halted for patient safety reasons prior to completion. |
62 | Two surgeons | Use when two surgeons work together as primary surgeons performing distinct portions of the operative procedure. |
66 | Surgical team | Use when a surgical team (more than two surgeons) is required for the operation. |
76 | Repeat procedure by same physician | Use if the same surgeon repeats the procedure later during the postoperative period (not listed in raw modifiers; omitted). |
78 | Unplanned return to the OR for a related procedure during the postoperative period | Use for a return to the operating room for a complication related to the original neck surgery. |
79 | Unrelated procedure or service during the postoperative period (not listed in raw modifiers; omitted). | |
LT | Left side | Use to report laterality when the left sternocleidomastoid is released. |
RT | Right side | Use to report laterality when the right sternocleidomastoid is released. |
22 | Increased procedural services | Use when the procedure requires substantially greater effort or time than usual (significant complexity). |
23 | Unusual anesthesia | Use when general anesthesia is contraindicated and an unusual form of anesthesia is used for this procedure. |
26 | Professional component | Use when reporting only the professional component of a service that has a technical component (rare for this surgical code). |
73 | Discontinued outpatient hospital/ASC procedure prior to anesthesia start | Use when procedure was cancelled prior to anesthesia in the ASC or outpatient hospital setting. |
52 | Reduced services (duplicate entry removed) | (See above for use) |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
| 207P00000X | Pediatric Orthopedic Surgery | Pediatric orthopedists commonly perform surgical releases for congenital muscular torticollis. |
| 2080P0200X | Pediatric Otolaryngology | Pediatric ENT surgeons perform neck tendon/muscle releases and manage related airway/neck concerns. |
| 207L0000X | Orthopedic Surgery | General orthopedists who treat pediatric neck deformities may perform this procedure. |
| 207X00000X | Surgery | General surgeons rarely perform this procedure but may be involved in some settings. |
| 331M00000X | Physical Therapy (not a surgical taxonomy) | Physical therapists manage pre- and postoperative therapy but are not claimable providers for surgical CPT reporting. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
| Data not available in the input. | Data not available in the input. | Data not available in the input. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
21725 | Division of sternocleidomastoid muscle; includes application of cast | Primary procedure code for surgical release of the sternocleidomastoid for torticollis with postoperative immobilization. |
21320 | Tenotomy, tendon lengthening or transfer; muscle, open, muscle or tendon (not specific to neck) | Related technique codes for soft-tissue releases or tendon procedures when additional lengthening or transfers are required. |
20550 | Injection; single tendon sheath, or ligament, aponeurosis (e.g., trigger point injection) | May be used preoperatively for diagnostic or therapeutic injections when conservative treatment is attempted prior to surgery. |
11042 | Debridement, subcutaneous tissue (not typically for this procedure) | Occasionally used if wound debridement is required during the surgical episode. |
99024 | Postoperative follow-up visit, global surgery package (not a CPT surgery code) | Used for routine postoperative visits included in the global period; documents follow-up care after 21725. |