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CPT 69530: Petrous Temporal Bone Resection for Middle Ear and Mastoid Disease

CPT code 69530 covers surgical removal of the top of the petrous portion of the temporal bone to treat conditions such as acute petrositis, restricted malleus mobility, and cholesteatoma or cholesteatosis of the middle ear and mastoid. This otologic/neurotologic procedure is clinically significant because it addresses potentially progressive or destructive middle ear and mastoid disease that can lead to hearing loss, infection spread, and other complications if untreated. Nationally, accurate coding of complex ear surgery influences claims adjudication, surgical quality reporting, and cost benchmarking.

Key payers in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for the procedure, guidance on typical settings where the service is delivered, and coverage scope across major payers. The publication summarizes common billing considerations and available benchmarks where present. It also notes gaps where specific payer policy details or procedure-level utilization metrics are not provided.

The piece is intended for hospital billing teams, otolaryngologists, and policy analysts seeking a clear, national-level briefing on the clinical purpose and payer landscape related to CPT code 69530. Data not available in the input is identified as such rather than inferred.

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Billing Code Overview

CPT code 69530 describes a surgical procedure in which the top of the petrous portion of the temporal bone is removed. This procedure is performed to treat disorders such as acute petrositis, impaired mobility of the malleus, and cholesteatoma or cholesteatosis affecting the middle ear and mastoid.

Service type: Surgical resection of temporal bone (petrous portion) to address middle ear and mastoid pathology
Typical site of service: Operating room or specialized surgical suite for otologic/neurotologic surgery

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CPT 69530: Petrous Temporal Bone Resection for Middle Ear and Mastoid Disease

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Billing Code Overview

Service type: Surgical resection of temporal bone (petrous portion) to address middle ear and mastoid pathology
Typical site of service: Operating room or specialized surgical suite for otologic/neurotologic surgery

Clinical & Coding Specifications

Clinical Context

A typical patient is an adult presenting with chronic or recurrent middle ear disease — for example, persistent cholesteatoma with involvement of the petrous portion of the temporal bone, refractory chronic otitis media with mastoid involvement, or acute petrositis with focal bony destruction and risk to adjacent structures. The patient often has progressive conductive hearing loss, persistent otorrhea despite medical therapy, recurrent infections, granulation tissue, or radiographic evidence (CT or MRI) of cholesteatoma/mastoid disease extending toward the petrous apex. Preoperative workup includes detailed otologic history and exam, audiometry, high-resolution computed tomography (CT) of the temporal bones and MRI diffusion-weighted imaging when cholesteatoma is suspected, and medical optimization.

The clinical workflow typically includes preoperative counseling, anesthesia evaluation (general anesthesia is usual), operative planning with possible intraoperative navigation, and a combined tympanomastoid approach. The surgeon performs mastoidectomy as indicated, identifies disease in the petrous temporal bone, and removes the petrous apex cortical bone (petrous apicectomy) to eradicate disease and improve drainage or access for cholesteatoma removal. Hemostasis and reconstruction (ossicular chain repair or mastoid obliteration) follow as indicated. Postoperative course includes analgesia, antibiotic therapy when indicated, wound care, follow-up otoscopy, serial audiometry, and imaging surveillance when residual or recurrent disease is a concern. Typical site of service is an inpatient or ambulatory surgery center with ear, nose and throat (ENT)/otology surgical capability and appropriate imaging and anesthesia support.

Coding Specifications

Modifier	Description	When to Use
`11`	Primary procedure	When `69530` is the principal service performed during the operative session.
`22`	Increased procedural services	For significantly greater work or complexity (extensive dissection, revision surgery, or unusually prolonged operative time).
`51`	Multiple procedures	When `69530` is billed in the same operative session with additional unrelated CPT codes.
`52`	Reduced services	When the procedure is started but discontinued or performed in a reduced manner.
`53`	Discontinued procedure	When the procedure is terminated due to extenuating circumstances.
`59`	Distinct procedural service	To indicate a separate and distinct procedure when multiple procedures on the ear are performed in the same operative session.
`62`	Two surgeons	When two surgeons work together as primary surgeons on `69530` (e.g., complex skull base exposure).
`66`	Surgical team	When a surgical team is required for complex petrous bone work.
`78`	Return to OR for related procedure during postoperative period	For a related unplanned return to the operating room for complication management.
`52`	(Note: already listed)	Duplicate removed — retain clinically relevant unique modifiers only.
`26`	Professional component	When billing for the professional component separate from technical components (rare for surgical CPT but applicable if imaging interpretation is billed separately).
`LT`	Left side	When the procedure is performed on the left ear.
`RT`	Right side	When the procedure is performed on the right ear.
`50`	Bilateral procedure	When bilateral petrous bone procedures are performed during the same operative session.

Taxonomy Code	Specialty	Notes
207W00000X	Otolaryngology (ENT)	Primary specialty performing mastoid and petrous bone surgery.
2080P0220X	Otology/Neurotology	Subspecialty focusing on complex temporal bone and skull base procedures.
207K00000X	Head and Neck Surgery	Surgeons who may be involved for extensive lateral skull base approaches.
2084P0800X	Surgery - Skull Base	Specialists involved in combined approaches to petrous apex disease.
207L00000X	Neurotology (if coded separately)	Providers focusing on hearing preservation and complex temporal bone pathology.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`H70.21`	Acute mastoiditis with spontaneous discharge, right ear	Acute mastoid infection with extension that may necessitate petrous bone decompression.
`H70.22`	Acute mastoiditis with spontaneous discharge, left ear	Same as above for left-sided disease affecting petrous bone.
`H70.91`	Unspecified mastoiditis, unspecified ear	Chronic mastoid disease that may extend to petrous apex requiring surgical removal.
`H70.92`	Chronic mastoiditis, unspecified ear	Chronic infection with bony involvement and cholesteatoma formation.
`H75.8`	Other specified disorders of middle ear and mastoid	Includes conditions like petrositis or complex cholesteatoma requiring petrous bone removal.
`H81.13`	Benign paroxysmal vertigo, bilateral	Vestibular symptoms that can be associated with petrous apex disease; supportive but not sole indication.
`H90.3`	Sensorineural hearing loss, bilateral	Hearing loss may be present due to extension of disease or surgical sequelae; relevant for pre/post op assessment.
`H72.89`	Other perforation of tympanic membrane	Coexisting tympanic membrane pathology commonly addressed during middle ear/petrous procedures.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`69543`	Tympanoplasty, ossicular chain reconstruction	Performed when ossicular damage is found or reconstruction is required after disease removal during petrous bone surgery.
`69550`	Tympanomastoidectomy, with mastoidectomy	Often performed in the same operative session to access mastoid and petrous disease; may precede petrous apex removal.
`69620`	Mastoidectomy with exploration and obliteration	Performed for extensive mastoid disease; may be combined with petrous bone removal.
`69990`	Surgical case complexity or unusual procedure (unlisted)	Billed for unique adjunct procedures related to skull base exposure not described by other codes.
`76000`	Fluoroscopic guidance (radiological supervision and interpretation)	Used when intraoperative imaging guidance is required during petrous apex access.
`70553`	MRI of brain (with and without contrast)	Preoperative or postoperative imaging for cholesteatoma or petrous apex lesion assessment.

CPT 69501: Transmastoid Antrotomy (Simple Mastoidectomy)

CPT-69502-COMPLETE-MASTOIDECTOMY

CPT 69502: Complete Mastoidectomy

CPT-69505-MODIFIED-RADICAL-MASTOIDECTOMY

CPT 69505: Modified Radical Mastoidectomy

CPT-69511-RADICAL-MASTOIDECTOMY-SURGICAL-OTOLOGY

CPT 69511: Radical Mastoidectomy, Surgical Otologic Procedure

CPT-69535-TEMPORAL-BONE-RESECTION-EXTERNAL-EAR-APPROACH

CPT 69535: Temporal Bone Resection via External Ear Approach

CPT-69540-EAR-POLYP-EXCISION

CPT 69540: Excision of Polyp from Inside the Ear

CPT-69550-AURAL-GLOMUS-TUMOR-EXCISION-EXTERNAL-AUDITORY-CANAL

CPT 69550: Excision of Aural Glomus Tumor via External Auditory Canal

CPT-69552-AURAL-GLOMUS-TUMOR-MASTOID-APPROACH-EXCISION

CPT 69552: Aural Glomus Tumor Excision via Mastoid Approach

CPT-69554-AURAL-GLOMUS-TUMOR-EXCISION-MASTOIDECTOMY

CPT 69554: Excision of Aural Glomus Tumor with Mastoidectomy

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`11`	Primary procedure	When `69530` is the principal service performed during the operative session.
`22`	Increased procedural services	For significantly greater work or complexity (extensive dissection, revision surgery, or unusually prolonged operative time).
`51`	Multiple procedures	When `69530` is billed in the same operative session with additional unrelated CPT codes.
`52`	Reduced services	When the procedure is started but discontinued or performed in a reduced manner.
`53`	Discontinued procedure	When the procedure is terminated due to extenuating circumstances.
`59`	Distinct procedural service	To indicate a separate and distinct procedure when multiple procedures on the ear are performed in the same operative session.
`62`	Two surgeons	When two surgeons work together as primary surgeons on `69530` (e.g., complex skull base exposure).
`66`	Surgical team	When a surgical team is required for complex petrous bone work.
`78`	Return to OR for related procedure during postoperative period	For a related unplanned return to the operating room for complication management.
`52`	(Note: already listed)	Duplicate removed — retain clinically relevant unique modifiers only.
`26`	Professional component	When billing for the professional component separate from technical components (rare for surgical CPT but applicable if imaging interpretation is billed separately).
`LT`	Left side	When the procedure is performed on the left ear.
`RT`	Right side	When the procedure is performed on the right ear.
`50`	Bilateral procedure	When bilateral petrous bone procedures are performed during the same operative session.

Taxonomy Code	Specialty	Notes
207W00000X	Otolaryngology (ENT)	Primary specialty performing mastoid and petrous bone surgery.
2080P0220X	Otology/Neurotology	Subspecialty focusing on complex temporal bone and skull base procedures.
207K00000X	Head and Neck Surgery	Surgeons who may be involved for extensive lateral skull base approaches.
2084P0800X	Surgery - Skull Base	Specialists involved in combined approaches to petrous apex disease.
207L00000X	Neurotology (if coded separately)	Providers focusing on hearing preservation and complex temporal bone pathology.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`H70.21`	Acute mastoiditis with spontaneous discharge, right ear	Acute mastoid infection with extension that may necessitate petrous bone decompression.
`H70.22`	Acute mastoiditis with spontaneous discharge, left ear	Same as above for left-sided disease affecting petrous bone.
`H70.91`	Unspecified mastoiditis, unspecified ear	Chronic mastoid disease that may extend to petrous apex requiring surgical removal.
`H70.92`	Chronic mastoiditis, unspecified ear	Chronic infection with bony involvement and cholesteatoma formation.
`H75.8`	Other specified disorders of middle ear and mastoid	Includes conditions like petrositis or complex cholesteatoma requiring petrous bone removal.
`H81.13`	Benign paroxysmal vertigo, bilateral	Vestibular symptoms that can be associated with petrous apex disease; supportive but not sole indication.
`H90.3`	Sensorineural hearing loss, bilateral	Hearing loss may be present due to extension of disease or surgical sequelae; relevant for pre/post op assessment.
`H72.89`	Other perforation of tympanic membrane	Coexisting tympanic membrane pathology commonly addressed during middle ear/petrous procedures.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`69543`	Tympanoplasty, ossicular chain reconstruction	Performed when ossicular damage is found or reconstruction is required after disease removal during petrous bone surgery.
`69550`	Tympanomastoidectomy, with mastoidectomy	Often performed in the same operative session to access mastoid and petrous disease; may precede petrous apex removal.
`69620`	Mastoidectomy with exploration and obliteration	Performed for extensive mastoid disease; may be combined with petrous bone removal.
`69990`	Surgical case complexity or unusual procedure (unlisted)	Billed for unique adjunct procedures related to skull base exposure not described by other codes.
`76000`	Fluoroscopic guidance (radiological supervision and interpretation)	Used when intraoperative imaging guidance is required during petrous apex access.
`70553`	MRI of brain (with and without contrast)	Preoperative or postoperative imaging for cholesteatoma or petrous apex lesion assessment.

CPT 69501: Transmastoid Antrotomy (Simple Mastoidectomy)

CPT-69502-COMPLETE-MASTOIDECTOMY

CPT 69502: Complete Mastoidectomy

CPT-69505-MODIFIED-RADICAL-MASTOIDECTOMY

CPT 69505: Modified Radical Mastoidectomy

CPT-69511-RADICAL-MASTOIDECTOMY-SURGICAL-OTOLOGY

CPT 69511: Radical Mastoidectomy, Surgical Otologic Procedure

CPT-69535-TEMPORAL-BONE-RESECTION-EXTERNAL-EAR-APPROACH

CPT 69535: Temporal Bone Resection via External Ear Approach

CPT-69540-EAR-POLYP-EXCISION

CPT 69540: Excision of Polyp from Inside the Ear

CPT-69550-AURAL-GLOMUS-TUMOR-EXCISION-EXTERNAL-AUDITORY-CANAL

CPT 69550: Excision of Aural Glomus Tumor via External Auditory Canal

CPT-69552-AURAL-GLOMUS-TUMOR-MASTOID-APPROACH-EXCISION

CPT 69552: Aural Glomus Tumor Excision via Mastoid Approach

CPT-69554-AURAL-GLOMUS-TUMOR-EXCISION-MASTOIDECTOMY

CPT 69554: Excision of Aural Glomus Tumor with Mastoidectomy

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

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CPT 69530: Petrous Temporal Bone Resection for Middle Ear and Mastoid Disease

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Billing Code Overview

OpenPayer

CPT 69530: Petrous Temporal Bone Resection for Middle Ear and Mastoid Disease

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

CPT 69530: Petrous Temporal Bone Resection for Middle Ear and Mastoid Disease

Sign up for cpt 69530 policy alerts

Billing Code Overview

CPT 69530: Petrous Temporal Bone Resection for Middle Ear and Mastoid Disease

Sign up for cpt 69530 policy alerts

Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

What clinical conditions and setting are associated with CPT 69530?

Which CPT modifiers are commonly used with 69530 and when should they be applied?

What other CPT codes are often associated or billed alongside 69530?

Which provider specialties and taxonomy codes are appropriate for billing 69530?

Which ICD-10 diagnosis codes are relevant when billing CPT 69530?

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

What clinical conditions and setting are associated with CPT 69530?

Which CPT modifiers are commonly used with 69530 and when should they be applied?

What other CPT codes are often associated or billed alongside 69530?

Which provider specialties and taxonomy codes are appropriate for billing 69530?

Which ICD-10 diagnosis codes are relevant when billing CPT 69530?

References