Summary & Overview

CPT 62148: Cranioplasty Using Previously Stored Autologous Cranial Bone Graft

CPT code 62148 is an add-on surgical code for retrieval and use of a previously stored autologous cranial bone graft to repair a skull defect during cranioplasty. This code captures the distinct work of incising and retrieving a cranial bone graft that was stored in a subcutaneous pocket (commonly in the abdomen) or in the inner lining of the scalp to preserve graft viability before definitive skull reconstruction. Nationally, accurate use of this code matters for appropriate procedural reporting, resource accounting, and surgical quality measurement in neurosurgery and craniofacial care.

Key payers covered in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise explanation of the clinical context for 62148, typical sites of service, and the kinds of claims scenarios where the code applies. The publication highlights common modifiers used with surgical services and where 62148 fits in relation to primary cranioplasty procedure codes, billing as an add-on, and expected documentation elements. It also outlines what information is not available in the input (for example, specific associated taxonomies, ICD-10 diagnosis mappings, and payer-specific reimbursement benchmarks).

This summary is intended for billing managers, coders, and clinical leaders seeking a clear, national-level overview of CPT code 62148 and its role in reporting cranioplasty procedures that reuse autologous cranial bone grafts.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare62148CPTcranioplastyautologous bone graftneurosurgerysurgical billingadd-on codeoperative retrievalskull defect repair

Billing Code Overview

CPT code 62148 describes an add-on cranioplasty procedure using a previously stored autologous cranial bone graft. In this procedure the provider incises and retrieves a cranial bone graft that was previously stored in a subcutaneous pocket in the abdomen or in the inner lining of the scalp near the defect site to preserve the graft and reduce graft devitalization. The retrieved graft is then used to repair the skull bone defect in a cranioplasty.

Service type: Surgical, cranioplasty with retrieval of stored autologous cranial bone graft

Typical site of service: Operating room or surgical suite (inpatient or outpatient hospital setting) where cranioplasty procedures are performed.

Clinical & Coding Specifications

Clinical Context

A 42-year-old male with a history of traumatic calvarial fracture underwent craniectomy with preservation of the autologous cranial bone flap by storing it in a subcutaneous abdominal pocket at the time of the initial procedure. Several months later, after resolution of cerebral edema and infection risk, the patient returns to the operating room for elective cranioplasty using the previously stored autologous bone flap. The operative workflow includes preoperative imaging to confirm defect margins, reopening of the abdominal subcutaneous pocket, incision and careful retrieval of the preserved bone graft, assessment and debridement of the graft as needed, preparation of the cranial defect site, fixation of the bone flap with plates/screws or other fixation devices, layered closure, and postoperative monitoring for wound healing and neurologic status.

Typical site of service is an inpatient or outpatient hospital operating room, frequently under general anesthesia. Preoperative evaluation, anesthesia services, and any intraoperative neurosurgical monitoring are documented separately. The 62148 add-on code is reported in conjunction with the primary cranioplasty or cranial repair service to account specifically for incision and retrieval of a previously stored cranial bone graft from a subcutaneous pocket in the abdomen or scalp.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when the retrieval and graft preparation require substantially greater work than typical.
`23`	Unusual anesthesia	Use when an otherwise normal procedure is performed under general anesthesia due to patient condition.
`26`	Professional component	Use when billing only the physician component of a split service (rare for this code).
`50`	Bilateral procedure	Use if bilateral cranial graft retrieval is performed and payer accepts modifier for bilateral reporting.
`52`	Reduced services	Use when the retrieval is partially reduced or not fully performed.
`53`	Discontinued procedure	Use when the retrieval is started but terminated due to extenuating circumstances.
`62`	Two surgeons	Use when two surgeons of different specialties work together as primary surgeons.
`63`	Procedure performed on infants less than 4 kg	Use when applicable to neonatal patients meeting weight criteria.
`78`	Return to OR for related procedure during postoperative period	Use when a subsequent operation revisits the graft site for a related reason.
`79`	Unrelated procedure or service by the same physician during the postoperative period	Not in provided list; exclude.
`80`	Assistant surgeon	Use when an assistant surgeon participates and payer requires this modifier.
`81`	Minimum assistant surgeon	Use when a minimal assistant surgeon role is documented.
`82`	Assistant surgeon when qualified resident not available	Use when a qualified resident is not available and an assistant is required.
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist service	Use when these nonphysician practitioners perform allowable portions per payer policy.

Taxonomy Code	Specialty	Notes
2084P0800X	Neurological Surgery	Primary specialty performing cranioplasty and graft retrieval.
208D00000X	Diagnostic Radiology	Preoperative imaging interpretation and intraoperative imaging support.
207RC0000X	Physician Assistant	Frequently assist in perioperative care and may perform portions of service under supervision.
163W00000X	Nurse Anesthetist	Provides anesthesia care in the operating room for these procedures.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S02.91XA`	Fracture of skull, unspecified, initial encounter	Skull fracture may lead to craniectomy with bone flap storage and later retrieval for cranioplasty.
`S06.5X0A`	Traumatic subdural hemorrhage without loss of consciousness, initial encounter	Severe head trauma often necessitates craniectomy and later bone flap replacement.
`S06.2X0A`	Diffuse traumatic brain injury without loss of consciousness, initial encounter	Brain injury management may include decompressive craniectomy and delayed cranioplasty with graft retrieval.
`T90.2`	Sequelae of fracture of skull and facial bones	Late care of skull defects can require cranioplasty using stored autologous grafts.
`G97.1`	Postprocedural hemorrhage and hematoma of nervous system following other procedure	Postoperative complications may necessitate reoperation and graft handling during cranioplasty.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`61343`	Craniectomy or craniotomy for decompression or evacuation of lesion, with or without bone flap replacement	Often the initial procedure that results in storage of an autologous bone flap for later retrieval with `62148`.
`61345`	Cranioplasty, with or without internal fixation, for treatment of cranial defect	Primary cranioplasty codes that are reported for the skull defect repair; `62148` is an add-on when the stored graft is retrieved.
`21248`	Revision of cranial or facial bone graft, includes shaping and fixation	Used when additional graft revision or shaping beyond standard cranioplasty is required in conjunction with graft retrieval.
`15734`	Muscle, myocutaneous, or fasciocutaneous flap reconstruction of the scalp or cranial soft tissues	Performed when soft tissue coverage or flap reconstruction is needed alongside graft retrieval and cranioplasty.
`69990`	Microsurgical techniques, requiring use of an operating microscope	Reported when operative microscope is used during cranioplasty or precise graft fixation.