67715

👁️ CPT 67715 — Canthotomy (Separate Procedure)

Quick Reference

wRVU: 1.24 | Global Period: 010 (10 days) | Assistant Payable: ❌ No | Bilateral Indicator: 1

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📋 Clinical Description

CPT 67715 describes a canthotomy, a surgical incision of the canthus (the junction where the upper and lower eyelids meet, usually the lateral canthus). In clinical practice, this code represents a life-saving, vision-preserving emergency decompressive procedure. The provider crushes the lateral canthus to minimize bleeding, then incises it horizontally to allow the eyelids to stretch and the globe to protrude forward. While the code specifies “canthotomy,” the accompanying “cantholysis” (snipping the inferior crus of the lateral canthal tendon to fully release the lower lid) is inherently part of the decompressive process and is bundled into this single code.

Orbital Compartment Syndrome (OCS) (H05.211, H05.231) is the primary, acute diagnosis driving this procedure. It is a rapidly progressive condition where bleeding (retrobulbar hemorrhage) or severe swelling inside the rigid bony eye socket causes a drastic spike in intraorbital pressure. If untreated within 90 to 120 minutes, the pressure chokes off the blood supply to the optic nerve, resulting in irreversible blindness.

This procedure may be performed in the following clinical contexts:

• Traumatic Retrobulbar Hemorrhage — An acute bleed behind the eye following blunt facial trauma (e.g., motor vehicle accident or assault), requiring immediate ED decompression.
• Post-operative Orbital Hemorrhage — A known complication occurring hours after elective blepharoplasty or other orbital surgeries.
• Severe Orbital Cellulitis — Massive infectious swelling within the orbit creating compartment syndrome characteristics.
• Acute Displacement / Exophthalmos — Used when rapid, vision-threatening bulging of the eye occurs due to an expanding orbital mass or fluid collection.

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🔬 Anatomical & Procedural Considerations

Modality / Technique Variant	Mechanism	Key Clinical Considerations
Lateral Canthotomy	A straight horizontal incision through the lateral canthus (outer corner of the eye) spanning from the commissure to the orbital rim.	Typically preceded by clamping the tissue with a straight hemostat for 1-2 minutes to achieve crush hemostasis before cutting.
Inferior Cantholysis	Following the canthotomy, the provider pulls the lower eyelid downward, strumming the lateral canthal tendon, and snips the inferior crus.	This step provides the actual decompression by allowing the lower eyelid to completely release and swing freely away from the globe. It is considered an inherent part of 67715 in emergency contexts.

Clinical Pearl

Because 67715 is an emergency bedside/ED procedure in most cases, coders must ensure that any associated same-day Evaluation and Management (E/M) service (e.g., the ED visit 99285) has modifier -25 appended. The E/M visit covers the extensive trauma evaluation and decision-making leading to the realization that the optic nerve is at risk, while 67715 pays purely for the surgical act of cutting the canthus.

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✅ Procedure Includes

• Focused pre-procedure assessment of visual acuity, pupillary response (checking for afferent pupillary defect), and intraocular pressure (tonometry).
• Local infiltration of anesthesia (e.g., lidocaine with epinephrine) at the lateral canthus.
• Crushing the canthus with a hemostat to minimize bleeding.
• Incision of the skin and conjunctiva at the lateral canthus.
• Dissection and division of the canthal tendon (cantholysis).
• Post-procedure application of antibiotic ointment and wound dressing.
• Routine 10-day post-operative care and monitoring of the healing incision.

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❌ Excludes / Do Not Report Together

Code	Description	Relationship to 67715
67950	Canthoplasty (reconstruction of canthus)	Mutually exclusive as a primary procedure. Canthoplasty is the reconstruction of the canthus, often done at a later date to repair the defect left by an emergency canthotomy.
67880	Construction of intermarginal adhesions, median tarsorrhaphy, or canthorrhaphy	Bundled. CPT defines 67715 as a “separate procedure.” If a tarsorrhaphy is performed on the same eye, the canthotomy is considered part of the surgical approach and is not separately reported.
67700	Blepharotomy, drainage of abscess, eyelid	Mutually exclusive. Used for draining a localized eyelid abscess, not decompressing the entire orbit via the canthus.
E/M codes (9928x / 992xx)	ED or Office visit, any level	Separately reportable only when modifier -25 is appended to the E/M code, documenting the significant, separately identifiable evaluation required to diagnose the compartment syndrome.

Bundling Alert — "Separate Procedure" Designation

CPT 67715 carries the “(separate procedure)” designation. This means it is only billable when it is performed independently for a distinct clinical purpose (like emergency decompression). If the surgeon makes a canthotomy incision simply to gain wider access to the orbit for a deeper, more complex orbital surgery during the same session, 67715 bundles into the major surgical code and cannot be billed.

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🌳 Code Tree — Surgery: Eyelids

CPT 65091-68899  Surgery: Eye and Ocular Adnexa
│
├── 67700-67715  Incision (Eyelid)
│   ├── 67700  Blepharotomy, drainage of abscess, eyelid  (Global: 010)
│   ├── 67710  Severing of tarsorrhaphy  (Global: 010)
│   └── ▶▶ 67715 ◀◀  Canthotomy (separate procedure)  ← YOU ARE HERE  (Global: 010)
│
└── 67800-67850  Excision and Destruction (Eyelid)

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💰 RVU & Reimbursement Profile

Component	Value
Work RVU (wRVU)	1.24 (verify against current CMS MPFS for applicable year)
Global Period	010 (10 days)
Bilateral Indicator	1 — Subject to standard 150% bilateral payment reduction if performed on both eyes. Medicare pays 100% for the first side and 50% for the second side.
Assistant Surgeon	❌ Not payable
Co-Surgeon	❌ Not applicable
Team Surgery	❌ Not applicable
PC/TC Split	❌ No — procedure code only (Indicator 0)
Modifier -51 Exempt	No
Anesthesia	Local infiltration; no separate anesthesia billing expected in standard ED settings.

Bilateral Billing Rules

CPT 67715 has a bilateral indicator of 1. If a patient suffers bilateral retrobulbar hemorrhages requiring bilateral canthotomies in the same session, bill as a single line with modifier -50 with 1 unit, or as two lines with -RT and -LT depending on your specific MAC’s preference.

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🏷️ Modifier Reference

Modifier	Name	When to Apply
-RT	Right Side	Procedure performed on the right canthus.
-LT	Left Side	Procedure performed on the left canthus.
-50	Bilateral Procedure	Applied when canthotomies are performed on both eyes during the same session.
-E1	Upper Left Eyelid	Can be applied if the payer requires strict eyelid modifiers instead of RT/LT, though RT/LT is generally preferred for the canthus.
-E2	Lower Left Eyelid	See above.
-E3	Upper Right Eyelid	See above.
-E4	Lower Right Eyelid	See above.
-25	Significant, Separately Identifiable E/M	Applied to the E/M code (e.g., 99285) when the decision for emergency surgery was made during the trauma evaluation on the same date.
-54	Surgical Care Only	Applied if an ED physician performs the life-saving canthotomy but transfers all follow-up wound care to an outpatient ophthalmologist.
-55	Postoperative Management Only	Applied by the receiving ophthalmologist taking over the 10-day global post-operative care.
-59	Distinct Procedural Service	Used if a canthotomy is performed on a distinct anatomic site (different eye) during a session where a larger orbital procedure is happening on the contralateral side.

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🩺 Common ICD-10-CM Pairings

Acute Orbital Pathologies

ICD-10 Code	Description	HCC?	Clinical Notes
H05.231	Hemorrhage of right orbit	❌ No	Most specific code for right-sided retrobulbar hemorrhage driving compartment syndrome.
H05.232	Hemorrhage of left orbit	❌ No	Left-sided retrobulbar hemorrhage.
H05.211	Acute displacement of globe (exophthalmos), right eye	❌ No	Used when extreme, sudden bulging requires decompression.
H05.212	Acute displacement of globe (exophthalmos), left eye	❌ No	Left side acute displacement.

Traumatic Etiology Codes

ICD-10 Code	Description	HCC?	Clinical Notes
S05.11XA	Contusion of eyeball and orbital tissues, right eye, initial encounter	❌ No	Report as a secondary etiology code when the hemorrhage was caused by blunt trauma.
S05.12XA	Contusion of eyeball and orbital tissues, left eye, initial encounter	❌ No	Left eye blunt trauma etiology.

Coding Specificity Reminder

Never use unspecified orbit codes (e.g., H05.239) for surgical procedures. The documentation must specify whether the right or left orbit was decompressed. Additionally, if the hemorrhage is due to trauma, ensure you append the appropriate S chapter code alongside the H chapter pathology code to tell the complete clinical story.

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🏥 MS-DRG Considerations (Inpatient)

Inpatient Coding Reminder

CPT 67715 is performed primarily in the Emergency Department or outpatient setting as a bedside rescue procedure. There are no routine MS-DRG assignments for this procedure in isolation. When this procedure occurs during an inpatient admission (e.g., a patient admitted to the trauma bay with multi-system injuries who develops delayed orbital compartment syndrome), it maps to MDC 02 (Diseases and Disorders of the Eye) and the DRG 124/125 family.

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🔧 ICD-10-PCS Equivalents (Inpatient Facility Coding)

Note

PCS codes are only utilized if this procedure is performed during an inpatient facility admission. The root operation is Division because the provider is transecting the canthal tissue/tendon to separate it and release tension, without taking any tissue out.

PCS Code	Full Description	Applicable Modality
[[088R0ZZ]]	Division of Right Upper Eyelid, Open Approach	Canthotomy (Right Eye)
[[088T0ZZ]]	Division of Left Upper Eyelid, Open Approach	Canthotomy (Left Eye)

PCS Character Analysis — [[088R0ZZ]]

Position	Character	Value	Definition
1	Section	0	Medical and Surgical
2	Body System	8	Eye
3	Root Operation	8	Division (Cutting into a body part, without draining fluids and/or gases, in order to separate or transect a body part)
4	Body Part	R	Upper Eyelid, Right (PCS uses eyelid body parts for canthal structures)
5	Approach	0	Open (Cutting through the skin to expose the site)
6	Device	Z	No Device
7	Qualifier	Z	No Qualifier

PCS Root Operation: Division

• Use Division (8) when coding canthotomy/cantholysis, as the primary objective is to sever the canthal tendon to release tension.

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📝 Coding Examples

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Example 1 — Emergency Room: Traumatic Retrobulbar Hemorrhage

Clinical Scenario: A 28-year-old male is rushed to the ED after being struck in the right eye with a baseball. He has severe periorbital ecchymosis, a rock-hard right orbit, and his intraocular pressure is measured at 65 mmHg. Visual acuity is reduced to light perception only. Diagnosing an acute orbital compartment syndrome secondary to retrobulbar hemorrhage, the ED physician immediately injects local anesthetic, crushes the right lateral canthus with a hemostat, and performs a lateral canthotomy with inferior cantholysis. The intraocular pressure drops to 22 mmHg, and vision improves. An ophthalmologist is consulted for follow-up care.

Field	Code	Rationale
CPT 1	67715-54-RT	Lateral canthotomy for decompression. Modifier -54 indicates the ED physician performed the surgical care only and is transferring the 10-day global post-op care.
CPT 2	99285-25	High-complexity ED visit for the trauma evaluation and medical decision-making leading to the surgery.
PDx	H05.231	Hemorrhage of right orbit (drives the compartment syndrome).
SDx	S05.11XA	Contusion of eyeball and orbital tissues, right eye, initial encounter.

Note

Without the -25 modifier on the ED E/M code, the visit will be bundled into the minor surgery (010 global) of the canthotomy.

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Example 2 — ASC: Bundled “Separate Procedure”

Clinical Scenario: A patient presents to the ambulatory surgery center for a complex repair of a massive right lower eyelid cicatricial ectropion. During the surgery, the oculoplastic surgeon notes extreme tension on the eyelid margin. To facilitate adequate mobilization of the skin flap and allow for the primary repair, the surgeon performs a lateral canthotomy.

Field	Code	Rationale
CPT 1	67914-RT	Repair of ectropion; suture. (Primary procedure).
PDx	H02.121	Cicatricial ectropion of right upper eyelid.

Warning

Do not bill 67715. Because 67715 is designated as a “separate procedure,” it cannot be billed when it is performed merely as an access or mobilizing incision to facilitate a larger, more definitive eyelid surgery in the same anatomic area.

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⚠️ Common Coding Pitfalls

• Failing to append Modifier -25 in the ED: Because 67715 has a 10-day global period (making it a “minor” surgery by Medicare standards), the primary E/M service on the same day will deny as bundled unless modifier -25 is correctly appended to the E/M code to show the evaluation was separate and significant.
• Unbundling from major orbital/eyelid procedures: Do not bill 67715 if the surgeon performed a lateral canthotomy simply to gain access for an orbital fracture repair, tumor removal, or complex eyelid reconstruction. The “separate procedure” rule means 67715 is only billable when it is the primary, stand-alone service (like in emergency decompression).
• Billing Cantholysis separately: Canthotomy (the horizontal cut) and cantholysis (the vertical snip of the tendon crus) are routinely performed together for decompression. Do not attempt to find a second code or bill 67715 twice for the cantholysis component.
• Missing the Surgical Care Only (-54) modifier: If an Emergency Medicine physician performs the procedure but the patient follows up in an ophthalmology clinic 3 days later, the ED physician must append modifier -54, and the ophthalmologist must append modifier -55. If the ED physician bills 67715 without -54, the ophthalmologist’s follow-up visit will be denied as bundled into the global period the ED doctor claimed.

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📎 Sources

^{AMA CPT 2025 Professional Edition} · ^{CMS 2025 Medicare Physician Fee Schedule Final Rule} · ^{CMS RVU25A Relative Value Files} · ^{NCCI Policy Manual Chapter 8, CMS 2024-2025} · ^{ICD-10-CM Official Guidelines for Coding and Reporting FY2025} · ^{ICD-10-PCS Official Guidelines for Coding and Reporting FY2025} · ^{American Academy of Ophthalmology (AAO) Coding Guidelines}