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CPT 21077: Orbital Prosthesis Impression

CPT code 21077 covers the creation of an impression for an orbital prosthesis, a key step in restoring the cosmetic appearance of a patient after eye removal. Nationally, this code matters because it documents specialized prosthetic services that bridge surgical care and prosthetic rehabilitation, with implications for coverage, patient access, and multidisciplinary care coordination. Common settings include outpatient prosthetics clinics, ocular prosthetics laboratories, and ambulatory surgical centers.

Key payers addressed in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of clinical context and service definitions, typical sites of service, and payer coverage considerations. The content also highlights common billing practices and the role of the impression in the larger prosthesis fabrication workflow.

This publication provides benchmarks and payer-focused coverage notes where available, summarizes relevant policy and coding guidance, and explains how CPT code 21077 fits into clinical pathways for orbital reconstruction and cosmetic rehabilitation. Data not available in the input is identified explicitly.

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Billing Code Overview

CPT code 21077 describes the creation of an orbital prosthesis impression. The procedure involves applying a substance that conforms to the patient’s orbital structure to form an impression, or negative imprint, of the eye socket after removal of an eye. That impression is used to build a mold from which the final prosthesis is fabricated to restore cosmetic appearance.

Service type: Prosthetic/orthotic fabrication service, impression taking

Typical site of service: Outpatient prosthetics clinic, ocular prosthetics laboratory, or ambulatory surgical center

Data not available in the input.

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CPT 21077: Orbital Prosthesis Impression

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Sign up for cpt 21077 policy alerts

Get alerted when payer policies referencing 21077 are released or updated.

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Billing Code Overview

Service type: Prosthetic/orthotic fabrication service, impression taking

Typical site of service: Outpatient prosthetics clinic, ocular prosthetics laboratory, or ambulatory surgical center

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 58-year-old patient presents to an oculoplastic or prosthetic clinic several weeks after enucleation of the left eye for a blind, painful eye secondary to severe trauma. After the surgical site has healed and the socket has adequate volume and no active infection, the ocularist schedules an impression appointment. During the visit, the provider applies a biocompatible impression material into the orbital socket to create a negative mold that accurately records the contours of the orbit and periocular tissues. The impression is used to fabricate an individualized orbital prosthesis that restores facial symmetry and cosmetic appearance. Typical workflow steps include review of the surgical history and healing status, topical anesthesia or lubrication as needed, placement of an impression tray or direct application of impression material, creation of the mold, and communication of measurements and aesthetic specifications to the ocularist laboratory for prosthesis fabrication. Follow-up visits occur for try-in, adjustments, and final fitting of the prosthesis. Typical sites of service are outpatient ambulatory surgical centers, hospital outpatient departments, or specialty prosthetic/ocularist clinics.

Coding Specifications

Modifier	Description	When to Use
`11`	Multiple procedures	When this service is the primary procedure performed during the visit in conjunction with other billed services
`22`	Increased procedural services	For unusually complex impression due to extreme anatomic distortion requiring significantly greater work
`23`	Unusual anesthesia	If general anesthesia is required for impression in an uncooperative or medically complex patient
`50`	Bilateral procedure	When impressions are taken for bilateral orbital prostheses (both orbits)
`51`	Multiple procedures	When another distinct, unrelated procedure is performed on the same day and both are reported
`52`	Reduced services	When the impression service is partially reduced or not completed as originally intended
`53`	Discontinued procedure	If the impression attempt is started but discontinued due to patient intolerance or complication
`62`	Two surgeons	When two surgeons of different specialties are required to perform the procedure simultaneously
`78`	Unplanned return to the OR by same surgeon	If a repeat impression is required during the same surgical episode following an intraoperative issue
`80`	Assistant surgeon	When an assistant surgeon performs a portion of the operative service
`81`	Minimum assistant surgeon	When a fractional assistant surgeon service is applicable
`82`	Assistant surgeon (when qualified resident unavailable)	When a qualified resident is not available and an assistant is required
`TC`	Technical component	If billing separates technical component (laboratory fabrication) from the professional impression service
`QX`	CRNA service with non-physician anesthetist	When a certified registered nurse anesthetist provides anesthesia when applicable

Taxonomy Code	Specialty	Notes
207P00000X	Ocular Prosthetics	Ocularists and anaplastologists who fabricate and fit orbital prostheses
207K00000X	Ophthalmology	Oculoplastic surgeons who manage enucleation patients and coordinate prosthetic care
207L00000X	Facial Plastic Surgery	Surgeons who perform orbital reconstruction and collaborate on prosthetic planning
2080P0002X	Prosthodontics (Anaplastology overlap)	Providers specialized in maxillofacial prosthetics involved in complex orbital prosthesis cases

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`H44.2`	Orbital cellulitis	Infection may lead to enucleation and subsequent need for orbital prosthesis or may affect timing of impression
`H44.3`	Endophthalmitis	Severe intraocular infection resulting in removal of the globe and need for prosthesis
`H15.0`	Orbital inflammation	Chronic inflammation causing blind painful eye and consideration for enucleation and prosthetic rehabilitation
`S05.0`	Injury of conjunctiva and corneal abrasion	Traumatic injuries that can progress to blind eye requiring enucleation and later prosthesis
`T85.79`	Other complication of internal prosthetic device, implant and graft	Used if prior orbital implant complication leads to revision and need for new external prosthesis
`C69.9`	Malignant neoplasm of eye, unspecified	Ocular malignancies frequently managed with enucleation followed by external orbital prosthesis
`H44.1`	Phthisis bulbi	End-stage, non-functional eye commonly resulting in prosthetic rehabilitation
`Z48.02`	Encounter for removal of implanted device from eye and adnexa	Encounter codes related to prior implant removal preceding prosthesis fitting

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`92310`	Prescription of optical and physical properties of ocular prosthesis; includes measurements	Used when documenting measurements and specifications for the prosthesis prescription prior to fabrication
`17311`	Mohs micrographic surgery; repair, extensive or complex (e.g., nose, lip, eyelid) (list separately in related facial reconstruction)	Performed when adjacent facial reconstructive procedures are required before or concurrent with prosthetic fitting
`67904`	Excision of lesion of eyelid or periocular tissue, complicated	May be performed in cases requiring removal of residual periocular tissue before prosthesis
`20550`	Injection(s); single tendon sheath, bursa, or ganglion cyst (for periocular socket injections)	Sometimes used for socket injections (e.g., steroid) to treat inflammation prior to impression
`99070`	Supplies and materials (e.g., surgical trays, impression materials)	Billed for additional non-covered supplies used during the impression appointment when separate supply billing is allowed

Related Codes

CPT-21076-SURGICAL-OBTURATOR-PROSTHESIS

CPT 21076: Surgical Obturator Prosthesis

CPT-21079-INTERIM-OBTURATOR-PROSTHESIS-IMPRESSION

CPT 21079: Interim Obturator Prosthesis, Impression-Based Fabrication

CPT-21080-DEFINITIVE-OBTURATOR-PROSTHESIS-FABRICATION

CPT 21080: Definitive Obturator Prosthesis Fabrication

CPT-21081-MANDIBULAR-RESECTION-PROSTHESIS-FABRICATION

CPT 21081: Mandibular Resection Prosthesis Fabrication

CPT-21082-PALATAL-AUGMENTATION-PROSTHESIS-FABRICATION

CPT 21082: Custom Palatal Augmentation Prosthesis Fabrication

CPT-21083-PALATAL-LIFT-PROSTHESIS-FABRICATION

CPT 21083: Palatal Lift Prosthesis Fabrication

CPT-21084-SPEECH-AID-PROSTHESIS-FABRICATION

CPT 21084: Speech Aid Prosthesis Fabrication

CPT-21085-ORAL-SURGICAL-SPLINT-FACIAL-CONTOUR-IMPRESSION

CPT 21085: Oral Surgical Splint Fabrication from Facial Impression

CPT-21086-AURICULAR-PROSTHESIS-IMPRESSION-FABRICATION

CPT 21086: Fabrication of Auricular Prosthesis (Ear Impression)

CPT-21087-NASAL-PROSTHESIS-FABRICATION-IMPRESSION

CPT 21087: Nasal Prosthesis Fabrication via Impression

Showing 1–10 of 11

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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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`11`	Multiple procedures	When this service is the primary procedure performed during the visit in conjunction with other billed services
`22`	Increased procedural services	For unusually complex impression due to extreme anatomic distortion requiring significantly greater work
`23`	Unusual anesthesia	If general anesthesia is required for impression in an uncooperative or medically complex patient
`50`	Bilateral procedure	When impressions are taken for bilateral orbital prostheses (both orbits)
`51`	Multiple procedures	When another distinct, unrelated procedure is performed on the same day and both are reported
`52`	Reduced services	When the impression service is partially reduced or not completed as originally intended
`53`	Discontinued procedure	If the impression attempt is started but discontinued due to patient intolerance or complication
`62`	Two surgeons	When two surgeons of different specialties are required to perform the procedure simultaneously
`78`	Unplanned return to the OR by same surgeon	If a repeat impression is required during the same surgical episode following an intraoperative issue
`80`	Assistant surgeon	When an assistant surgeon performs a portion of the operative service
`81`	Minimum assistant surgeon	When a fractional assistant surgeon service is applicable
`82`	Assistant surgeon (when qualified resident unavailable)	When a qualified resident is not available and an assistant is required
`TC`	Technical component	If billing separates technical component (laboratory fabrication) from the professional impression service
`QX`	CRNA service with non-physician anesthetist	When a certified registered nurse anesthetist provides anesthesia when applicable

Taxonomy Code	Specialty	Notes
207P00000X	Ocular Prosthetics	Ocularists and anaplastologists who fabricate and fit orbital prostheses
207K00000X	Ophthalmology	Oculoplastic surgeons who manage enucleation patients and coordinate prosthetic care
207L00000X	Facial Plastic Surgery	Surgeons who perform orbital reconstruction and collaborate on prosthetic planning
2080P0002X	Prosthodontics (Anaplastology overlap)	Providers specialized in maxillofacial prosthetics involved in complex orbital prosthesis cases

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`H44.2`	Orbital cellulitis	Infection may lead to enucleation and subsequent need for orbital prosthesis or may affect timing of impression
`H44.3`	Endophthalmitis	Severe intraocular infection resulting in removal of the globe and need for prosthesis
`H15.0`	Orbital inflammation	Chronic inflammation causing blind painful eye and consideration for enucleation and prosthetic rehabilitation
`S05.0`	Injury of conjunctiva and corneal abrasion	Traumatic injuries that can progress to blind eye requiring enucleation and later prosthesis
`T85.79`	Other complication of internal prosthetic device, implant and graft	Used if prior orbital implant complication leads to revision and need for new external prosthesis
`C69.9`	Malignant neoplasm of eye, unspecified	Ocular malignancies frequently managed with enucleation followed by external orbital prosthesis
`H44.1`	Phthisis bulbi	End-stage, non-functional eye commonly resulting in prosthetic rehabilitation
`Z48.02`	Encounter for removal of implanted device from eye and adnexa	Encounter codes related to prior implant removal preceding prosthesis fitting

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`92310`	Prescription of optical and physical properties of ocular prosthesis; includes measurements	Used when documenting measurements and specifications for the prosthesis prescription prior to fabrication
`17311`	Mohs micrographic surgery; repair, extensive or complex (e.g., nose, lip, eyelid) (list separately in related facial reconstruction)	Performed when adjacent facial reconstructive procedures are required before or concurrent with prosthetic fitting
`67904`	Excision of lesion of eyelid or periocular tissue, complicated	May be performed in cases requiring removal of residual periocular tissue before prosthesis
`20550`	Injection(s); single tendon sheath, bursa, or ganglion cyst (for periocular socket injections)	Sometimes used for socket injections (e.g., steroid) to treat inflammation prior to impression
`99070`	Supplies and materials (e.g., surgical trays, impression materials)	Billed for additional non-covered supplies used during the impression appointment when separate supply billing is allowed

Related Codes

CPT-21076-SURGICAL-OBTURATOR-PROSTHESIS

CPT 21076: Surgical Obturator Prosthesis

CPT-21079-INTERIM-OBTURATOR-PROSTHESIS-IMPRESSION

CPT 21079: Interim Obturator Prosthesis, Impression-Based Fabrication

CPT-21080-DEFINITIVE-OBTURATOR-PROSTHESIS-FABRICATION

CPT 21080: Definitive Obturator Prosthesis Fabrication

CPT-21081-MANDIBULAR-RESECTION-PROSTHESIS-FABRICATION

CPT 21081: Mandibular Resection Prosthesis Fabrication

CPT-21082-PALATAL-AUGMENTATION-PROSTHESIS-FABRICATION

CPT 21082: Custom Palatal Augmentation Prosthesis Fabrication

CPT-21083-PALATAL-LIFT-PROSTHESIS-FABRICATION

CPT 21083: Palatal Lift Prosthesis Fabrication

CPT-21084-SPEECH-AID-PROSTHESIS-FABRICATION

CPT 21084: Speech Aid Prosthesis Fabrication

CPT-21085-ORAL-SURGICAL-SPLINT-FACIAL-CONTOUR-IMPRESSION

CPT 21085: Oral Surgical Splint Fabrication from Facial Impression

CPT-21086-AURICULAR-PROSTHESIS-IMPRESSION-FABRICATION

CPT 21086: Fabrication of Auricular Prosthesis (Ear Impression)

CPT-21087-NASAL-PROSTHESIS-FABRICATION-IMPRESSION

CPT 21087: Nasal Prosthesis Fabrication via Impression

Showing 1–10 of 11

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.