CPT 61316 Reimbursement & Policy Benchmarks | OpenPayer

Summary & Overview

CPT 61316: Temporary Subcutaneous Cranial Bone Graft Pocketing

CPT code 61316 is an add-on surgical code for temporary subcutaneous storage of a cranial bone graft when immediate cranioplasty is not advisable, most often due to cerebral edema that could raise intracranial pressure. The procedure involves creating a skin incision and a subcutaneous pocket—frequently in the abdomen—to house a split-thickness or full-thickness bone flap, or fragmented bone material, for later retrieval and reimplantation. Nationally, this code matters because it captures an important staged neurosurgical workflow that affects inpatient surgical coding, resource use, and follow-up reconstructive procedures.

Key payers included in this analysis are Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find guidance on the clinical context in which CPT code 61316 is used, common settings of care, and what to expect in terms of coding classification and service line placement. The publication summarizes benchmarks where available, highlights relevant policy and coverage considerations affecting reimbursement and utilization, and places the procedure in broader care pathways for patients requiring delayed cranioplasty. Data not included in the input—such as specific payer rate tables, associated taxonomies, and ICD-10 diagnosis mappings—is noted as unavailable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicareCPT 61316cranial bone graftcranioplasty stagingneurosurgeryadd-on proceduresurgical codingautologous bone storageabdominal pocketinginpatient surgeryoperative technique

Billing Code Overview

CPT code 61316 describes an add-on cranial bone graft pocketing procedure performed when immediate replacement of a cranial bone flap is contraindicated, commonly because of brain swelling that could increase intracranial pressure. The provider makes an incision in the skin and creates a subcutaneous pocket — most often in the abdomen — and temporarily places a split-thickness or full-thickness cranial bone graft, or shaved bone/dust material, for later retrieval and reimplantation.

Service Type: Surgical — cranial bone graft pocketing (temporary subcutaneous storage of autologous bone flap)

Typical Site of Service: Operating room or surgical suite with post‑operative monitoring; graft pocket most commonly located in the abdomen

Clinical & Coding Specifications

Clinical Context

A 48-year-old male presents after a traumatic skull fracture with intracranial hemorrhage and malignant cerebral edema. He undergoes emergent craniectomy for decompression and the neurosurgeon cannot safely replace the bone flap due to elevated intracranial pressure and ongoing brain swelling. In the same operative setting, the provider performs an add-on procedure to temporarily place the removed cranial bone flap into a remote subcutaneous pocket in the abdomen for preservation until delayed cranioplasty.

The clinical workflow includes preoperative consent for decompressive craniectomy with possible bone flap preservation, general anesthesia, sterile preparation of the cranial site and a separate abdominal pocket site, creation of a subcutaneous pocket in the abdomen, placement of the split-thickness or full-thickness bone graft (or bone dust) into the pocket, secure closure of both incision sites, documentation of bone flap labeling and chain of custody, postoperative monitoring in the intensive care unit for intracranial pressure and wound status, and scheduling of a future outpatient or inpatient cranioplasty to retrieve and replace the preserved bone flap when intracranial pressures have normalized.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work, time, or complexity substantially exceeds the usual for `61316` and documentation justifies the unusual increase.

CPT 61534: Craniotomy for Resection of Epileptogenic Focus

CPT-61556-CRANIAL-VAULT-REMODELING-FRONTAL-PARIETAL-BONE-FLAP

CPT 61556: Cranial Vault Remodeling for Craniosynostosis

CPT-61540-NON-TEMPORAL-BRAIN-LOBECTOMY-CRANIOTOMY

CPT 61540: Non‑temporal Brain Lobectomy via Craniotomy

CPT-61570-CRANIECTOMY-CRANIOTOMY-FOREIGN-BODY-EXCISION

CPT 61570: Craniectomy/Craniotomy, Excision of Foreign Body

CPT-61546-PITUITARY-TUMOR-RESECTION-CRANIOTOMY

CPT 61546: Craniotomy for Pituitary Tumor Resection

CPT-61526-TRANSTEMPORAL-CEREBELLOPONTINE-ANGLE-TUMOR-RESECTION

CPT 61526: Transtemporal Resection of Cerebellopontine Angle Tumor

CPT-61567-SUBPIAL-CORTICAL-SECTIONING-WITH-CORTICAL-RECORDING

CPT 61567: Subpial Cortical Sectioning with Intraoperative Cortical Recording

CPT-61533-INTRACRANIAL-SEIZURE-MONITORING-SUBDURAL-ELECTRODE-PLACEMENT

CPT 61533: Subdural Electrode Placement for Intracranial Seizure Monitoring

CPT-61530-CEREBELLOPONTINE-ANGLE-TUMOR-RESECTION-TRANSTEMPORAL-POSTERIOR-FOSSA

CPT 61530: Cerebellopontine Angle Tumor Resection, Transtemporal and Posterior Fossa

CPT-61323-DECOMPRESSIVE-CRANIECTOMY-PARTIAL-BRAIN-RESECTION-DURAPLASTY

CPT 61323: Decompressive Craniectomy with Partial Brain Resection and Duraplasty

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Taxonomy Code	Specialty	Notes
2086S0105X	Neurological Surgery	Primary specialty performing craniectomy and bone flap preservation.
207RC0000X	Anesthesiology	Provides anesthesia care for the operative and abdominal pocket procedures.
207Q00000X	Surgery	General surgeons may create or assist with remote abdominal pocket placement in select cases.
2084P0801X	Critical Care Medicine	Intensivists manage postoperative intracranial pressure and ICU care following the procedure.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S02.91XA`	Fracture of unspecified skull, initial encounter	Skull fractures with intracranial injury may require decompressive craniectomy and temporary bone flap preservation.
`S06.5X0A`	Traumatic subdural hemorrhage without loss of consciousness, initial encounter	Acute subdural hematoma causing mass effect and swelling often necessitates decompression and use of `61316`.
`S06.2X0A`	Diffuse traumatic brain injury without loss of consciousness, initial encounter	Severe brain injury with cerebral edema can preclude immediate bone flap replacement.
`I62.9`	Nontraumatic intracranial hemorrhage, unspecified	Spontaneous hemorrhage with elevated intracranial pressure may lead to craniectomy and bone flap storage.
`G93.6`	Cerebral edema	Cerebral edema is a primary indication for deferred bone flap replacement and temporary subcutaneous storage.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`61312`	Craniectomy or craniotomy for intracranial procedure, with decompression (including elevation and/or segmental resection of skull)	Often performed immediately before `61316`; `61316` is an add-on for bone flap preservation when replacement is deferred.
`61154`	Craniectomy or craniotomy; decompression, supra- or infratentorial (excluding transsphenoidal approach)	Related decompressive cranial procedures that may necessitate temporary bone flap storage using `61316`.
`11042`	Debridement, subcutaneous tissue (includes epidermis and dermis when performed) — 1st 20 sq cm or less, depth to subcutaneous tissue; first stage	May be used if significant debridement of the abdominal pocket site is required prior to or during placement of the bone flap.
`12032`	Repair, intermediate, wounds of scalp, arms, legs; 2.5 cm to 7.5 cm	Used for closure of donor or abdominal pocket incision when layered intermediate repair is performed.
`97605`	Negative pressure wound therapy (NPWT) initiation, simple or complex	May be used postoperatively in cases with wound concerns at the cranial or abdominal pocket site.
`99291`	Critical care, evaluation and management of the critically ill or injured patient; first 30–74 minutes	Commonly reported for intensive care management of patients postoperatively with elevated intracranial pressure after procedures including `61316`.

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