CPT 61322 Decompressive Craniectomy Reimbursement | OpenPayer

Summary & Overview

CPT 61322: Decompressive Craniectomy with Possible Duraplasty

CPT code 61322 represents a neurosurgical decompressive craniectomy performed to relieve raised intracranial pressure (ICP) by removing a portion of the skull and, when indicated, performing duraplasty to expand or reconstruct the dura. The procedure is clinically significant in acute brain swelling from causes such as malignant cerebral edema and other non-hematoma etiologies; it preserves neural tissue by preventing secondary injury from uncontrolled intracranial hypertension. Nationally, this service is performed primarily in inpatient surgical settings and carries implications for acute surgical access, hospital resource utilization, and postoperative care pathways.

Key payers in discussions of coverage and reimbursement include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise overview of the clinical intent of the code, the typical site of service and service type, common modifier considerations (listed separately), and the contexts in which this code is reported. The publication also summarizes policy and billing nuances relevant to facility and professional claims, benchmark considerations where available, and clinical context that informs appropriate use of the code. Data not provided in the input—such as associated taxonomies, ICD-10 pairings, and related billing codes—is noted as unavailable.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare61322CPTneurosurgerydecompressive-craniectomyduraplastyintracranial-pressureinpatient-surgeryoperating-room

Billing Code Overview

CPT code 61322 describes a neurosurgical procedure in which part of the skull is removed to relieve elevated intracranial pressure (ICP) by giving the swollen brain room to expand. The service may include duraplasty, which is reconstruction or expansion of the dura using a synthetic graft or the patient’s pericranium. The procedure specifically excludes removal of a related hematoma due to conditions such as a closed head injury and does not involve dissection into the lobes of the brain.

Service type: Neurosurgical decompressive craniectomy with possible duraplasty

Typical site of service: Operating room, inpatient hospital setting

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 48-year-old male is admitted to the intensive care unit after an ischemic stroke complicated by malignant cerebral edema causing rapidly rising intracranial pressure and declining neurologic status. Neuroimaging (CT or MRI) shows diffuse hemispheric swelling with midline shift and compressed ventricles. After failed medical management including osmotherapy, hyperventilation, and sedation, the neurosurgery team proceeds with a decompressive craniectomy to remove a portion of the skull and perform duraplasty to allow the swollen brain to expand and reduce intracranial pressure. The procedure is performed in the operating room under general anesthesia. Postoperative workflow includes intensive care monitoring of neurologic status, intracranial pressure management, wound care, and planning for later cranioplasty.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when the procedure required substantially greater work than typical (extended time, complexity).
`23`	Unusual anesthesia	Use when medically necessary anesthesia is required for an otherwise minor procedure; rarely used for major cranial procedures.

CPT 61548: Resection of Pituitary Gland or Tumor via Nose or Mouth

CPT-61320-INTRACRANIAL-ABSCESS-DRAINAGE-SUPRATENTORIAL

CPT 61320: Supratentorial Intracranial Abscess Drainage

CPT-61543-HEMISPHERECTOMY-OR-EXTENSIVE-CEREBRAL-RESECTION

CPT 61543: Hemispherectomy or Extensive Cerebral Resection

CPT-61321-CRANIAL-ABSCESS-DRAINAGE

CPT 61321: Cranial Drainage of Brain Abscess

61510-CRANIECTOMY-OR-CRANIOTOMY-FOR-EXCISION-OF-BRAIN-TUMOR

CPT 61510: Craniectomy/Craniotomy for Supratentorial Brain Tumor

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

CPT 61533: Subdural Electrode Placement for Intracranial Seizure Monitoring

CPT-61550-CRANIAL-VAULT-RESHAPING-SKULL-SUTURE-REPAIR

CPT 61550: Cranial Vault Reshaping for Skull Suture Abnormality

CPT-61460-CRANIAL-NERVE-EXPOSURE-ACOUSTIC-NEUROMA

CPT 61460: Cranial Nerve Exposure for Acoustic Neuroma

CPT-61536-RESECTIVE-EPILEPSY-SURGERY-EXCISION-EPILEPTOGENIC-FOCUS

CPT 61536: Resection of Epileptogenic Focus via Craniotomy

CPT-61520-ACOUSTIC-NEUROMA-RESECTION-POSTERIOR-FOSSA

CPT 61520: Excision of Cerebellopontine Angle Tumor (Acoustic Neuroma)

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Taxonomy Code	Specialty	Notes
2084N0400X	Neurological Surgery	Primary specialty performing decompressive craniectomy.
207T00000X	Surgery - Neurosurgery (General)	Neurosurgeons who perform cranial decompressions in acute care.
208D00000X	Critical Care Medicine	Critical care physicians manage perioperative ICU care after the procedure.
207L00000X	Surgery - General	General surgeons may be involved in trauma centers for head-injury related cases.
207G00000X	Anesthesiology	Anesthesiologists provide general anesthesia for the operation.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`I63.9`	Cerebral infarction, unspecified	Malignant ischemic stroke can cause cerebral edema requiring decompressive craniectomy.
`I61.9`	Intracerebral hemorrhage, unspecified	Large hemorrhagic strokes may produce mass effect and elevated ICP managed with decompression.
`S06.5X9A`	Traumatic subdural hemorrhage, unspecified, initial encounter	Acute traumatic intracranial bleeding with swelling may necessitate decompressive craniectomy in trauma care.
`G93.6`	Cerebral edema	Direct clinical indication for decompressive craniectomy to relieve raised intracranial pressure.
`I67.1`	Cerebral atherosclerosis	Underlying vascular disease contributing to stroke and secondary swelling; comorbidity in surgical planning.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`61154`	Craniectomy or craniotomy with excision of brain mass, supratentorial	May be performed when a focal mass lesion necessitates decompression; different indication than decompressive craniectomy for diffuse swelling.
`61312`	Craniectomy, suboccipital or posterior fossa decompression	Related posterior fossa decompression for infratentorial swelling or Chiari decompression; differs by surgical site.
`61105`	Craniotomy with exploration for evacuation of hematoma	Performed when evacuation of an associated intracranial hematoma is required; this service is excluded from `61322` when hematoma removal is primary.
`61512`	Craniectomy or craniotomy for tumor excision, infratentorial	Related cranial procedures that may be performed in the same operative setting if combined pathologies exist.
`21210`	Reconstruction of cranial defect (simple)	Performed later during cranioplasty to reconstruct skull defect created by decompressive craniectomy.

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