CPT 42300 Parotid Abscess Drainage Reimbursement | OpenPayer

Summary & Overview

CPT 42300: Drainage of Parotid Gland Abscess

CPT code 42300 denotes incision and drainage of an infected parotid salivary gland abscess, a surgical procedure used to evacuate purulent material and address deep parotid infections. The code captures a targeted operative intervention with implications for acute surgical care, antibiotic management, and potential hospital-level services when complications or comorbidities exist. Nationally, accurate coding of parotid abscess drainage affects clinical quality reporting, facility and professional payment, and downstream utilization monitoring for head and neck infections.

Key payers in the analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication outlines payer coverage contexts, typical reimbursement considerations, and common clinical settings where this procedure is delivered.

Readers will find a concise clinical context for when 42300 is used, benchmarks and typical sites of service, guidance on documentation elements that support code selection, and notes on payer variations and policy updates where available. Data not available in the input will be identified explicitly. This summary is intended for coding professionals, billing staff, surgical providers, and policy analysts seeking a national perspective on billing and operational implications for parotid abscess drainage.

AetnaBlue Cross Blue ShieldCigna HealthUnitedHealthcareMedicare42300CPTparotid-abscessincision-and-drainagehead-and-neck-surgeryambulatory-surgerysurgical-procedures

Billing Code Overview

CPT code 42300 describes an operative procedure to drain an infected abscess of the parotid salivary gland. The service involves incision and drainage of purulent material within the parotid gland to treat infection and relieve local symptoms.

Service type: Surgical drainage procedure
Typical site of service: Ambulatory surgery center or hospital operating room; may also be performed in an outpatient surgical clinic depending on clinical circumstance

Clinical & Coding Specifications

Clinical Context

A 46-year-old male presents to the emergency department with 48 hours of increasing left preauricular swelling, severe pain, erythema, trismus, and fever. Physical exam demonstrates a fluctuant swelling over the parotid gland with purulent discharge expressed from Stensen duct and palpable tenderness. Point-of-care ultrasound confirms a discrete abscess within the superficial lobe of the parotid gland. The clinical workflow includes urgent evaluation by an otolaryngologist or oral and maxillofacial surgeon, pre-procedure consent, local anesthesia or monitored anesthesia care depending on patient factors, incision and drainage of the parotid abscess under sterile conditions, specimen collection for culture and sensitivity, placement of a packing strip or drain as indicated, observation for facial nerve function, post-procedure wound care instructions, and initiation or adjustment of targeted antibiotics based on culture results. Typical settings for this procedure include the emergency department, ambulatory surgery center, or operating room depending on complexity and anesthesia requirements.

Coding Specifications

Modifier	Description	When to Use
`22`	Increased procedural services	Use when work required is substantially greater than typical for `42300` (complex dissection, severe infection).

CPT 42320: External Drainage of Submaxillary Salivary Gland Abscess

CPT-42310-INCISION-DRAINAGE-SUBMANDIBULAR-SUBLINGUAL-ABSCESS

CPT 42310: Incision and Drainage of Submaxillary/Sublingual Salivary Gland Abscess

CPT-42330-SIALOLITHOTOMY-REMOVAL-SALIVARY-GLAND-STONE

CPT 42330: Sialolithotomy, Removal of Salivary Gland Stone

CPT-42340-SIALOLITHOTOMY-PAROTID-GLAND-REMOVAL

CPT 42340: Sialolithotomy, Removal of Parotid Gland Stone

CPT-42305-PAROTID-ABSCESS-DRAINAGE-COMPLEX

CPT 42305: Complex Drainage of Parotid Gland Abscess

CPT-42335-SIALOLITHOTOMY-SALIVARY-GLAND-STONE-REMOVAL

CPT 42335: Sialolithotomy, Removal of Salivary Gland Stone

Taxonomy Code	Specialty	Notes
207Y00000X	Otolaryngology (ENT)	Common specialty performing parotid abscess drainage.
1223P0500X	Oral and Maxillofacial Surgery	Performs drainage when intraoral approach or complex facial soft-tissue management required.
207L00000X	Plastic Surgery	Involved when reconstructive concerns or complex soft-tissue management present.
208000000X	Emergency Medicine	May perform bedside drainage in ED for urgent source control.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`K11.3`	Sialoadenitis	Represents inflammation of salivary glands and can progress to abscess requiring `42300`.
`K11.5`	Abscess of salivary gland	Directly describes the clinical indication for parotid abscess drainage coded with `42300`.
`J15.9`	Pneumonia due to unspecified bacteria	Systemic infection that may be a comorbid infectious diagnosis; included as an example of concurrent bacterial infection — clinical correlation required.
`L02.419`	Cutaneous abscess of face	Represents superficial facial abscesses that may require separate drainage or be considered in differential diagnosis.
`B95.2`	Streptococcus, group B, as the cause of diseases classified elsewhere	Used as an organism code to identify causative bacteria when cultures are positive and linked to the abscess diagnosis.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`41800`	Incision and drainage of cyst or abscess, mucous retention cyst or ranula; intraoral, single	May be used if intraoral drainage of a neighboring intraoral abscess is performed in the same session.
`10060`	Incision and drainage of abscess (e.g., carbuncle, pustule, or boil); simple or single	May be used for superficial facial abscesses that are not parotid-specific; performed when scope of drainage differs from `42300`.
`10160`	Puncture aspiration of abscess; simple	Used for needle aspiration of superficial abscesses when aspiration rather than open incision is performed.
`99152`	Moderate sedation services provided by the same physician performing a procedure (initial 15 minutes intraprocedural time)	Coded when moderate sedation is provided by the physician during `42300` and required by payer rules.
`67028`	Intravitreal injection of a pharmacologic agent (separate unrelated procedure example)	Represents an unrelated procedure example for modifier use; not commonly combined but illustrates multiple-procedure billing considerations.

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