Crystal's Coder Hub👁️ CPT 67966 — Excision And Repair Of Eyelid; Over One-Fourth Of Lid Margin
Quick Reference
wRVU: 14.46 | Global Period: 090 (90 days) | Assistant Payable: ❌ No | Bilateral Indicator: 2
📋 Clinical Description
CPT 67966 describes full-thickness excision and reconstruction of more than one-fourth of the eyelid margin (greater than 25% of the horizontal lid length), including repair of the lid margin, tarsus, conjunctiva, and/or canthus. This code is used when a large defect is created by tumor excision, trauma repair, or correction of severe eyelid malposition (ectropion, entropion, or floppy eyelid syndrome), and the reconstruction requires complex repair techniques such as tarsal strip procedures, full-thickness wedge resection with layered closure, or adjacent tissue transfer. This code is distinguished from 67961 (excision and repair of eyelid up to one-fourth of lid margin) by the extent of tissue excised—67966 is used when more than 25% of the horizontal lid margin is involved, which typically requires more extensive reconstruction to restore eyelid function and contour.
Eyelid margin defects involving more than one-fourth of the horizontal lid length cannot be repaired with simple direct closure without causing lagophthalmos, lid retraction, or lid notching. When more than 25% of the lid margin is excised, reconstruction typically requires lateral cantholysis, canthotomy, tarsal strip creation, or adjacent tissue flaps to maintain eyelid tension, position, and function. The goal of this procedure is to restore normal eyelid anatomy, protect the ocular surface, and preserve blinking, tear distribution, and cosmetic appearance.
This procedure may be performed in the following clinical contexts:
- Eyelid Tumor Excision with Reconstruction — When a basal cell carcinoma, squamous cell carcinoma, sebaceous carcinoma, or other eyelid neoplasm is excised and the defect exceeds 25% of the horizontal lid margin
- Severe Floppy Eyelid Syndrome (FES) — When horizontal eyelid laxity is so severe that more than one-fourth of the lid margin must be resected and reconstructed using a lateral tarsal strip or full-thickness wedge resection to restore eyelid tone and prevent chronic ocular surface exposure (often associated with E66.9 obesity and G47.33 obstructive sleep apnea)
- Severe Ectropion or Entropion Repair — When involutional, cicatricial, or paralytic ectropion or entropion requires extensive full-thickness eyelid margin resection and reconstruction to restore normal lid position
- Traumatic Eyelid Margin Laceration or Avulsion — When traumatic injury results in loss or severe disruption of more than 25% of the horizontal eyelid margin, requiring full-thickness reconstruction
- Congenital Eyelid Coloboma Repair — When a congenital full-thickness eyelid defect (Q10.3) exceeds one-fourth of the lid margin and requires surgical reconstruction in the pediatric population
🔬 Anatomical & Procedural Considerations
| Technique | Steps | Key Notes |
|---|---|---|
| Full-Thickness Wedge Resection | Pentagonal or shield-shaped wedge excision through full thickness of eyelid (skin, orbicularis, tarsus, conjunctiva); excision of more than 25% of horizontal lid margin; layered closure with tarsal plate sutures (5-0 or 6-0 absorbable), lid margin alignment sutures (6-0 silk), and skin closure | Most common technique for tumor excision or severe laxity; requires meticulous lid margin realignment to prevent notching |
| Lateral Tarsal Strip Procedure | Lateral canthotomy and inferior cantholysis to release lower lid; de-epithelialization of lateral tarsus to create a “strip”; excision of redundant tarsus (more than 25% of horizontal lid); fixation of tarsal strip to lateral orbital rim periosteum with permanent suture (5-0 Mersilene or Prolene) | Gold standard for lower lid laxity and ectropion repair when horizontal lid laxity is severe; tightens lower lid and restores tone |
| Lateral Canthal Sling or Suspension | Lateral canthotomy; excision of redundant tarsal tissue; creation of lateral canthal sling using fascia lata, donor fascia, or permanent suture; fixation to lateral orbital rim | Used when tarsal strip alone is insufficient for severe laxity or when both upper and lower lids require suspension |
| Adjacent Tissue Transfer (Advancement Flap, Rotation Flap, or Transposition Flap) | When direct closure is not possible after excision of more than 25% of lid margin, an advancement flap (Tenzel semicircular flap), rotation flap, or transposition flap from upper to lower lid (Hughes flap) or lower to upper lid (Cutler-Beard flap) is used to reconstruct the defect | Hughes flap (tarsoconjunctival advancement from upper lid to lower lid) and Cutler-Beard flap (full-thickness advancement from lower lid to upper lid) are two-stage procedures requiring flap division 4-6 weeks post-op |
| Skin Graft or Pedicle Flap | When full-thickness defect exceeds one-third to one-half of the lid margin, a full-thickness skin graft (from upper lid or postauricular region) or a pedicle flap (Mustarde cheek rotation flap) may be required in addition to tarsal reconstruction | When skin graft or pedicle flap is performed, code 67966 includes preparation for the graft; skin graft placement may be separately reportable under integumentary system codes (14060-14061) |
Clinical Pearl
The key documentation requirement to support CPT 67966 is explicit mention that the excised or reconstructed eyelid margin exceeds one-fourth (25%) of the horizontal lid length. If the operative note states “full-thickness wedge resection of lateral one-third of lower lid” or “lateral tarsal strip with 6 mm of tarsus excised,” measure the total horizontal lid length (typically 25-30 mm) to confirm that the excised segment exceeds 6-7 mm (one-fourth). If the excision is 25% or less, the correct code is 67961, not 67966. Coders must query the surgeon if the percentage is not documented but the millimeter measurement suggests the threshold is borderline.
✅ Procedure Includes
- Pre-procedure ophthalmic examination and measurement of eyelid laxity (snap-back test, distraction test, lid margin measurements)
- Local anesthesia with or without sedation (local infiltration with lidocaine and epinephrine; sedation separately billable if moderate sedation is provided and documented)
- Marking of excision margins or measurement of redundant tissue
- Full-thickness excision of eyelid tissue involving lid margin, tarsus, conjunctiva, and/or canthus (greater than one-fourth of horizontal lid margin)
- Lateral canthotomy and cantholysis when performed as part of the reconstruction (bundled; not separately reportable)
- De-epithelialization of tarsal strip (when tarsal strip technique is used)
- Layered closure of eyelid: tarsal plate sutures, lid margin alignment sutures, conjunctival sutures, and skin closure
- Fixation of tarsal strip or flap to lateral orbital rim periosteum with permanent suture (when applicable)
- Preparation for skin graft or pedicle flap (when applicable; graft placement may be separately reportable)
- Application of antibiotic ointment, eye patch, or protective shield
- All routine post-operative visits within the 90-day global window, including suture removal, graft assessment, and wound healing evaluation
❌ Excludes / Do Not Report Together
| Code | Description | Relationship to 67966 |
|---|---|---|
| 67961 | Excision and repair of eyelid, involving lid margin, tarsus, conjunctiva, canthus, or full thickness; up to one-fourth of lid margin | Do not report together when performed on the same eyelid at the same session; use 67961 when excision is ≤25% of horizontal lid margin; use 67966 when excision is >25% |
| 67975 | Reconstruction of eyelid, full thickness by transfer of tarsoconjunctival flap from opposing eyelid; up to two-thirds of eyelid, one stage or first stage | More extensive reconstruction than 67966; when a tarsoconjunctival flap (e.g., Hughes flap) is used and exceeds two-thirds of the lid margin, report 67975 instead of 67966 |
| 67950 | Canthoplasty (reconstruction of canthus) | Do not report separately when performed as part of the full-thickness eyelid reconstruction (e.g., lateral canthal reconstruction is bundled into 67966); report separately only when canthoplasty is performed independently on a different eyelid or as a distinct procedure unrelated to the 67966 repair |
| 67923 | Repair of entropion; extensive (e.g., tarsal strip operations) | Do not report together when performed on the same eyelid at the same session; when entropion repair involves full-thickness excision of more than 25% of the lid margin, report 67966; when entropion repair is performed without full-thickness excision exceeding 25%, report 67923 |
| 67924 | Repair of entropion; excision tarsal wedge | Do not report together when performed on the same eyelid at the same session; when tarsal wedge excision exceeds 25% of horizontal lid margin, report 67966 instead of 67924 |
| 67914 | Repair of ectropion; extensive (e.g., tarsal strip or capsulopalpebral fascia repairs operation) | Do not report together when performed on the same eyelid at the same session; when ectropion repair involves full-thickness excision of more than 25% of the lid margin, report 67966; when ectropion repair is performed without full-thickness excision exceeding 25%, report 67914 |
| 11440-11446 | Excision of benign lesion (including margins), face, ears, eyelids, nose, lips; various sizes | Tumor excision codes are bundled into 67966 when the lesion is on the eyelid margin and the reconstruction is performed at the same session; do not report separately |
| E/M codes (99202-99215) | Office or outpatient visit, new or established patient | Separately reportable only when modifier -25 is appended to the E/M code, documenting a significant, separately identifiable E/M service beyond the routine pre-procedure assessment |
Bundling Alert — Global Period is 090 (90 days), Not 010
CPT 67966 carries a 90-day global period, meaning all routine post-operative follow-up visits, suture removal, graft assessment, and wound healing checks within 90 days of surgery are bundled into the surgical payment and cannot be billed separately. To bill an E/M visit during the global window for an unrelated condition, append modifier -24 to the E/M code and document the unrelated nature of the visit explicitly in the note. To bill a staged second procedure during the global window (e.g., division of a Hughes flap at 4-6 weeks), append modifier -58 to the second procedure code to indicate a planned, staged procedure. The most common audit finding is inappropriate separate billing for routine post-op suture removal or wound check within the global period.
🌳 Code Tree — Surgery: Eye and Ocular Adnexa
CPT 65091-68899 Surgery: Eye and Ocular Adnexa
│
├── 67800-67808 Excision and Destruction (Eyelids)
├── 67810-67850 Tarsorrhaphy
├── 67875-67882 Eversion of Eyelid (Canthotomy, Cantholysis, Canthoplasty)
├── 67900-67924 Repair (Brow Ptosis, Blepharoptosis, Lid Retraction)
│
└── 67930-67999 Reconstruction Procedures on the Eyelids
├── 67930 Suture of recent wound, eyelid (linear, not full thickness)
├── 67935 Suture of recent wound, eyelid (full thickness)
├── 67938 Removal of embedded foreign body, eyelid
├── 67950 Canthoplasty (reconstruction of canthus)
├── 67961 Excision and repair of eyelid, involving lid margin, tarsus, conjunctiva, canthus, or full thickness; up to one-fourth of lid margin (Global: 090)
├── ▶▶ 67966 ◀◀ Excision and repair of eyelid, involving lid margin, tarsus, conjunctiva, canthus, or full thickness; over one-fourth of lid margin ← YOU ARE HERE (Global: 090)
├── 67971 Reconstruction of eyelid, full thickness by transfer of tarsoconjunctival flap from opposing eyelid; up to two-thirds of eyelid, one stage or first stage (Global: 090)
├── 67973 Reconstruction of eyelid, full thickness by transfer of tarsoconjunctival flap from opposing eyelid; total eyelid, lower, one stage or first stage (Global: 090)
├── 67974 Reconstruction of eyelid, full thickness by transfer of tarsoconjunctival flap from opposing eyelid; total eyelid, upper, one stage or first stage (Global: 090)
├── 67975 Reconstruction of eyelid, full thickness by transfer of tarsoconjunctival flap from opposing eyelid; second stage (Global: 090)
└── 67999 Unlisted procedure, eyelids
💰 RVU & Reimbursement Profile
| Component | Value |
|---|---|
| Work RVU (wRVU) | 14.46 (verify against current CMS MPFS for applicable year) |
| Global Period | 090 (90 days) |
| Bilateral Indicator | 2 — 150% payment adjustment for bilateral procedures does not apply; when performed bilaterally in the same session, each eyelid is reported on a separate claim line with anatomic modifiers (-E1/-E2/-E3/-E4 or -RT/-LT); both sides are paid at 100% of the fee schedule amount |
| Assistant Surgeon | ❌ Not payable — Medicare Assistant Surgeon Indicator is “1” (assistant surgeon services are not reasonable and necessary for this procedure) |
| Co-Surgeon | ❌ Not applicable |
| Team Surgery | ❌ Not applicable |
| PC/TC Split | ❌ No — procedure code only (Indicator 0); no professional/technical component split |
| Modifier -51 Exempt | No |
| Anesthesia | Local anesthesia with or without sedation is typical; moderate sedation (99151-99153) may be separately reportable if documented; general anesthesia (00103) is rarely required |
Bilateral Billing Rules
CPT 67966 has a bilateral indicator of 2, meaning the 150% bilateral payment rule does not apply. When the procedure is performed on multiple eyelids in the same session (e.g., bilateral lower lids for floppy eyelid syndrome, or upper and lower lids on the same side for extensive tumor excision), each eyelid is reported on a separate claim line using anatomic modifiers:
Alternatively, use -RT or -LT when billing systems do not accept eyelid-specific modifiers. Both eyelids are paid at 100% of the fee schedule amount (no reduction). When performed on the same eyelid in the same session (e.g., revision of the same lid), report the code only once with the appropriate modifier.
🏷️ Modifier Reference
| Modifier | Name | When to Apply |
|---|---|---|
| -RT | Right Side | Procedure performed on the right eye (when billing system does not accept eyelid-specific modifiers) |
| -LT | Left Side | Procedure performed on the left eye (when billing system does not accept eyelid-specific modifiers) |
| -E1 | Upper Left Eyelid | Procedure performed on the upper left eyelid |
| -E2 | Lower Left Eyelid | Procedure performed on the lower left eyelid |
| -E3 | Upper Right Eyelid | Procedure performed on the upper right eyelid |
| -E4 | Lower Right Eyelid | Procedure performed on the lower right eyelid |
| -50 | Bilateral Procedure | Do not use — bilateral indicator is “2”; report each eyelid on a separate line with -E1/-E2/-E3/-E4 or -RT/-LT instead |
| -25 | Significant, Separately Identifiable E/M | Applied to the E/M code — not 67966 — when an office visit is performed on the same date as the decision for surgery; documentation must support a separate, medically necessary evaluation beyond the standard pre-procedure assessment |
| -24 | Unrelated E/M During Postoperative Period | Applied to the E/M code when a patient returns within the 90-day global window for a condition unrelated to the eyelid repair; document the unrelated nature explicitly (e.g., “Patient returns for diabetic retinopathy follow-up; surgical eyelid healing well”) |
| -51 | Multiple Procedures | When 67966 is performed alongside other surgical procedures at the same session; apply to the lower-valued code; multiple procedure payment reduction rules apply |
| -59 | Distinct Procedural Service | When payers inappropriately bundle 67966 with another procedure; documents distinct anatomic site (e.g., 67966-E2 performed with unrelated upper lid blepharoplasty 15822-E3 on same date) |
| -58 | Staged or Related Procedure During Postoperative Period | Planned staged procedure during the 90-day global window (e.g., second-stage flap division for Hughes or Cutler-Beard flap); resets the global period |
| -78 | Unplanned Return to OR for Related Procedure During Postoperative Period | Unplanned return for complication during the 90-day global period (e.g., graft failure or wound dehiscence requiring revision within 90 days); paid at reduced rate (intra-operative portion only, no pre- or post-op payment) |
| -79 | Unrelated Procedure During Postoperative Period | Unrelated procedure performed during the 90-day global window (e.g., cataract surgery performed 30 days after eyelid reconstruction); resets the global period for the new procedure |
🩺 Common ICD-10-CM Pairings
Ectropion (Eversion of Eyelid Margin)
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| H02.121 | Paralytic ectropion of right upper eyelid | ❌ No | When ectropion is caused by facial nerve paralysis (G51.0) or other neurologic condition; supports medical necessity for extensive reconstruction |
| H02.122 | Paralytic ectropion of right lower eyelid | ❌ No | Most common eyelid affected by paralytic ectropion (lower lid) |
| H02.123 | Paralytic ectropion of right eye, unspecified eyelid | ❌ No | Use only when upper vs. lower eyelid is not specified in documentation; query for specificity |
| H02.111 | Cicatricial ectropion of right upper eyelid | ❌ No | When ectropion is caused by scarring from prior surgery, trauma, or burn |
| H02.112 | Cicatricial ectropion of right lower eyelid | ❌ No | Lower lid cicatricial ectropion |
| H02.113 | Cicatricial ectropion of right eye, unspecified eyelid | ❌ No | Unspecified; query for upper vs. lower |
| H02.131 | Senile ectropion of right upper eyelid | ❌ No | Most common type; involutional ectropion due to aging and horizontal lid laxity |
| H02.132 | Senile ectropion of right lower eyelid | ❌ No | Lower lid senile ectropion — most frequent indication for 67966 |
| H02.133 | Senile ectropion of right eye, unspecified eyelid | ❌ No | Unspecified; query for upper vs. lower |
Entropion (Inversion of Eyelid Margin)
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| H02.031 | Senile entropion of right upper eyelid | ❌ No | Involutional entropion due to aging; eyelid margin turns inward, causing lashes to abrade the cornea |
| H02.032 | Senile entropion of right lower eyelid | ❌ No | Lower lid senile entropion — common indication for 67966 when extensive |
| H02.033 | Senile entropion of right eye, unspecified eyelid | ❌ No | Unspecified; query for upper vs. lower |
| H02.011 | Cicatricial entropion of right upper eyelid | ❌ No | When entropion is caused by scarring (trachoma, chemical burn, ocular cicatricial pemphigoid) |
| H02.012 | Cicatricial entropion of right lower eyelid | ❌ No | Lower lid cicatricial entropion |
| H02.013 | Cicatricial entropion of right eye, unspecified eyelid | ❌ No | Unspecified; query for upper vs. lower |
Floppy Eyelid Syndrome
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| H02.831 | Floppy eyelid syndrome, right upper eyelid | ❌ No | Horizontal eyelid laxity with easily everted, rubbery upper eyelid; strongly associated with obesity and obstructive sleep apnea; document snap-back test and distraction measurements |
| H02.832 | Floppy eyelid syndrome, right lower eyelid | ❌ No | Lower lid floppy eyelid syndrome |
| H02.833 | Floppy eyelid syndrome, right eye, unspecified eyelid | ❌ No | Unspecified; query for upper vs. lower |
| H02.834 | Floppy eyelid syndrome, left upper eyelid | ❌ No | Left upper lid FES |
| H02.835 | Floppy eyelid syndrome, left lower eyelid | ❌ No | Left lower lid FES |
| H02.836 | Floppy eyelid syndrome, left eye, unspecified eyelid | ❌ No | Unspecified; query for upper vs. lower |
Eyelid Disorders Supporting Medical Necessity
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| H02.51 | Abnormal innervation syndrome, right upper eyelid | ❌ No | When eyelid malposition is caused by aberrant nerve regeneration |
| H02.52 | Abnormal innervation syndrome, right lower eyelid | ❌ No | Lower lid abnormal innervation |
| H02.53 | Abnormal innervation syndrome, right eye, unspecified eyelid | ❌ No | Unspecified; query for upper vs. lower |
Congenital Eyelid Malformations
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| Q10.3 | Other congenital malformations of eyelid | ❌ No | Congenital eyelid coloboma (full-thickness eyelid defect present at birth); use when pediatric patient presents with congenital full-thickness eyelid defect exceeding 25% of lid margin |
Malignant Neoplasms of Eyelid (Supporting Tumor Excision)
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| C44.1191 | Basal cell carcinoma of skin of right upper eyelid, including canthus | ✅ HCC 11 | When basal cell carcinoma is excised and defect exceeds 25% of horizontal lid margin; supports medical necessity for extensive reconstruction |
| C44.1192 | Basal cell carcinoma of skin of right lower eyelid, including canthus | ✅ HCC 11 | Lower lid basal cell carcinoma |
| C44.1291 | Squamous cell carcinoma of skin of right upper eyelid, including canthus | ✅ HCC 11 | When squamous cell carcinoma is excised and defect exceeds 25% of horizontal lid margin |
| C44.1292 | Squamous cell carcinoma of skin of right lower eyelid, including canthus | ✅ HCC 11 | Lower lid squamous cell carcinoma |
Associated Systemic Conditions (Secondary Diagnoses)
| ICD-10 Code | Description | HCC? | Clinical Notes |
|---|---|---|---|
| E66.9 | Obesity, unspecified | ✅ HCC 22 | Strongly associated with floppy eyelid syndrome; document BMI when present |
| G47.33 | Obstructive sleep apnea (adult) (pediatric) | ✅ HCC 84 | Strongly associated with floppy eyelid syndrome; document when patient has confirmed diagnosis of OSA |
| G51.0 | Bell’s palsy | ❌ No | When ectropion is caused by facial nerve paralysis; supports medical necessity for paralytic ectropion repair |
Coding Specificity Reminder
The most common specificity gap for eyelid repair coding is eyelid-specific laterality and upper vs. lower eyelid. Every ICD-10-CM diagnosis code for ectropion, entropion, and floppy eyelid syndrome requires 6th or 7th character specification for:
- Laterality (right vs. left)
- Eyelid location (upper vs. lower)
If the operative note documents “right lower lid lateral tarsal strip with full-thickness wedge resection” but the diagnosis is documented only as “ectropion” without specifying senile vs. cicatricial, right vs. left, or upper vs. lower, query the surgeon to confirm the most specific diagnosis code. Unspecified codes (character 3 or 9) should be avoided whenever the operative report documents the surgical eyelid. ICD-10-CM specificity requirements are not optional — accurate coding requires complete documentation.
🏥 MS-DRG Considerations (Inpatient)
Inpatient Coding Reminder
CPT 67966 is performed exclusively in the outpatient, office, or ambulatory surgical center (ASC) setting. There are no routine MS-DRG assignments for this procedure — inpatient admission for eyelid reconstruction would not be supported by any payer, MAC, or utilization review body. If a patient undergoing an inpatient admission for an unrelated diagnosis also has eyelid reconstruction performed (e.g., incidental same-hospitalization surgery for unrelated trauma or infection), an ICD-10-PCS code may be assigned for completeness, but it will have no meaningful impact on DRG grouping. See the ICD-10-PCS section below.
🔧 ICD-10-PCS Equivalents (Inpatient Facility Coding)
Note
Inpatient PCS coding for eyelid reconstruction is extremely rare — this procedure is almost never performed in the inpatient setting. When it is coded using ICD-10-PCS (e.g., incidental to an inpatient stay for unrelated diagnosis), the PCS codes below may be assigned. The PCS root operation for eyelid repair is Repair (Q) (restoring, to the extent possible, a body part to its normal anatomic structure and function). PCS does not influence DRG assignment for this procedure.
| PCS Code | Full Description | Applicable Eyelid |
|---|---|---|
08QNXZZ | Repair Right Upper Eyelid, External Approach | Right upper eyelid full-thickness excision and reconstruction |
08QPXZZ | Repair Left Upper Eyelid, External Approach | Left upper eyelid full-thickness excision and reconstruction |
08QRXZZ | Repair Right Lower Eyelid, External Approach | Right lower eyelid full-thickness excision and reconstruction |
08QQXZZ | Repair Left Lower Eyelid, External Approach | Left lower eyelid full-thickness excision and reconstruction |
PCS Character Analysis — 08QRXZZ
| Position | Character | Value | Definition |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical |
| 2 | Body System | 8 | Eye |
| 3 | Root Operation | Q | Repair (Restoring, to the extent possible, a body part to its normal anatomic structure and function) |
| 4 | Body Part | R | Right Lower Eyelid |
| 5 | Approach | X | External |
| 6 | Device | Z | No Device |
| 7 | Qualifier | Z | No Qualifier |
PCS Root Operation: Repair (Q)
- Use Repair (Q) for full-thickness eyelid reconstruction when the goal is to restore the normal anatomic structure of the eyelid margin, tarsus, and conjunctiva
- When multiple eyelids are repaired in the same session (e.g., bilateral lower lids for floppy eyelid syndrome), assign separate PCS code lines for each eyelid treated — PCS has no modifier equivalent for bilateral procedures
- If skin graft or flap is used in addition to eyelid repair, an additional PCS code for the graft or flap may be assigned under the root operation Replacement (R) or Transfer (X)
📝 Coding Examples
Example 1 — Office: Severe Floppy Eyelid Syndrome, Bilateral Lower Lids
Clinical Scenario: A 58-year-old obese male (BMI 38) with a history of obstructive sleep apnea presents with chronic bilateral lower eyelid laxity, morning crusting, and chronic conjunctival injection. Physical examination reveals severe horizontal lid laxity with snap-back test >3 seconds bilaterally and easily everted lower lids. Diagnosis: floppy eyelid syndrome, bilateral lower lids. The oculoplastic surgeon performs bilateral lower lid lateral tarsal strip procedures under local anesthesia in the office. The operative note documents: “Bilateral lower lid lateral canthotomy and inferior cantholysis performed. Lower lid tarsal plate de-epithelialized; 7 mm of redundant tarsus excised from each lower lid (approximately 30% of horizontal lid margin). Tarsal strip fixated to lateral orbital rim periosteum with 5-0 Mersilene suture. Skin closed with 6-0 plain gut.” No separate E/M was documented on the date of surgery.
| Field | Code | Rationale |
|---|---|---|
| CPT 1 | 67966-E4 | Right lower eyelid full-thickness excision and reconstruction (lateral tarsal strip with >25% of horizontal lid margin excised) |
| CPT 2 | 67966-E2 | Left lower eyelid full-thickness excision and reconstruction (lateral tarsal strip with >25% of horizontal lid margin excised) |
| PDx | H02.832 | Floppy eyelid syndrome, right lower eyelid — primary diagnosis for right lower lid |
| SDx | H02.835 | Floppy eyelid syndrome, left lower eyelid — primary diagnosis for left lower lid |
| SDx | E66.9 | Obesity, unspecified — associated condition supporting medical necessity |
| SDx | G47.33 | Obstructive sleep apnea — associated condition strongly linked to floppy eyelid syndrome |
Note
Both eyelids are reported on separate claim lines with eyelid-specific modifiers (-E4 for right lower, -E2 for left lower). Both procedures are paid at 100% of the fee schedule amount (no bilateral reduction). No modifier -51 is required because bilateral indicator is “2” and both procedures are paid in full. The 90-day global period applies to both eyelids; all routine post-op visits for both lids are bundled.
Example 2 — ASC: Basal Cell Carcinoma Excision with Extensive Reconstruction
Clinical Scenario: A 72-year-old female with a 1.2 cm nodular basal cell carcinoma of the right lower lid margin presents for surgical excision. The tumor involves the medial one-third of the lower lid margin, extending to the punctum. The oculoplastic surgeon excises the tumor with 4 mm margins, creating a full-thickness defect of 40% of the horizontal lower lid margin. The operative note documents: “Full-thickness pentagonal excision of medial right lower lid; tumor excised with clear margins confirmed by frozen section; defect measures 12 mm (approximately 40% of 30 mm horizontal lid length). Lateral canthotomy and inferior cantholysis performed. Full-thickness layered closure: 5-0 Vicryl for tarsal plate, 6-0 silk for lid margin alignment, 6-0 plain gut for skin. Lid margin well aligned with no notching.” Pathology confirms basal cell carcinoma with negative margins.
| Field | Code | Rationale |
|---|---|---|
| CPT | 67966-E4 | Right lower eyelid full-thickness excision and reconstruction (>25% of horizontal lid margin); eyelid-specific modifier for right lower lid |
| PDx | C44.1192 | Basal cell carcinoma of skin of right lower eyelid, including canthus — primary diagnosis; HCC 11 |
Note
The tumor excision is bundled into CPT 67966 when the lesion is on the eyelid margin and the reconstruction is performed at the same session. Do not report a separate excision code (11440-11446 or 11640-11646). The reconstruction code (67966) captures the entire procedure: excision, margin assessment, and full-thickness repair. If the pathology report later shows positive margins requiring re-excision, a second procedure may be separately reportable with modifier -58 (staged procedure) during the global period.
Example 3 — Outpatient Hospital: Severe Senile Ectropion with Same-Day E/M for Unrelated Condition
Clinical Scenario: A 68-year-old male presents to the ophthalmology clinic for diabetic retinopathy follow-up. During the visit, he mentions worsening tearing and irritation of the left lower lid over the past 6 months. The physician performs a comprehensive E/M evaluation for diabetic retinopathy with macular edema, orders OCT imaging, and adjusts the patient’s anti-VEGF injection schedule. The physician also examines the left lower lid and finds severe ectropion with horizontal lid laxity (distraction >10 mm, snap-back >4 seconds), punctal eversion, and conjunctival keratinization. The patient is scheduled for left lower lid repair 3 weeks later. At surgery, the oculoplastic surgeon performs a lateral tarsal strip procedure with excision of 8 mm of redundant tarsus (approximately 30% of horizontal lid margin) and fixation to the lateral orbital rim. The operative note documents: “Left lower lid lateral tarsal strip; lateral canthotomy and inferior cantholysis; 8 mm of tarsal plate excised; tarsal strip fixated to lateral orbital rim periosteum with 5-0 Prolene; skin closed with 6-0 fast-absorbing gut.”
| Field | Code | Rationale |
|---|---|---|
| CPT 1 | 99214-25 | Office visit for diabetic retinopathy with macular edema (unrelated to the eyelid surgery decision); modifier -25 indicates significant, separately identifiable E/M service on the same date as the decision for surgery |
| CPT 2 | 67966-E2 | Left lower eyelid full-thickness excision and reconstruction (lateral tarsal strip with >25% of horizontal lid margin excised) |
| PDx | E11.311 | Type 2 diabetes mellitus with unspecified diabetic retinopathy with macular edema — primary diagnosis for the E/M visit |
| SDx | H02.132 | Senile ectropion of left lower eyelid — primary diagnosis for the surgical procedure |
Warning
Modifier -25 placement: Modifier -25 is applied to the E/M code (99214), not to the surgical procedure code (67966). The documentation must clearly support that the E/M service was significant and separately identifiable from the pre-operative assessment bundled into the surgical procedure. In this case, the E/M was for diabetic retinopathy (unrelated diagnosis), and the eyelid evaluation was documented as a secondary finding that led to the surgical decision. If the E/M had been solely for the purpose of deciding to proceed with eyelid surgery, modifier -25 would not be appropriate, and the visit would be considered part of the global surgical package.
⚠️ Common Coding Pitfalls
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Missing documentation of percentage or millimeter measurement of excised lid margin: The distinction between CPT 67961 (up to one-fourth of lid margin) and 67966 (over one-fourth of lid margin) is the extent of tissue excised. If the operative note states “lateral tarsal strip” or “full-thickness wedge resection” without documenting the percentage or millimeter measurement of excised lid margin, coders cannot determine whether the excision exceeds 25%. Query the surgeon to document: (1) the total horizontal lid length (typically 25-30 mm), and (2) the length of excised tissue in millimeters or as a percentage. If the excision is ≤25% (≤6-7 mm), the correct code is 67961. If the excision is >25% (>6-7 mm), the correct code is 67966. Upcoding from 67961 to 67966 without documentation is a high-risk audit target.
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Confusing eyelid-specific modifiers with laterality modifiers: CPT 67966 requires eyelid-specific modifiers (-E1, -E2, -E3, -E4) to identify the exact eyelid repaired (upper left, lower left, upper right, lower right). Do not use only -RT or -LT when multiple eyelids on the same side are repaired (e.g., right upper and right lower lids), as this will result in duplicate billing denial. Use -E1/-E2/-E3/-E4 for maximum specificity. If the billing system does not accept eyelid-specific modifiers, use -RT or -LT and submit supporting documentation to clarify which eyelid was repaired.
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Billing routine post-operative visits separately during the 90-day global period: CPT 67966 has a 90-day global period, meaning all routine post-operative visits, suture removal, wound healing checks, and graft assessments within 90 days of surgery are bundled into the surgical payment and cannot be billed separately. To bill an E/M visit during the global window, the visit must be for an unrelated condition (append modifier -24 to the E/M code) or for a complication requiring significant additional E/M work beyond routine post-op care (append modifier -24 and document the complication explicitly). The most common compliance finding is inappropriate separate billing for routine post-op suture removal or wound check within the global period.
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Reporting 67966 and 67961 together for the same eyelid at the same session: CPT 67966 is the more extensive code and subsumes all elements of 67961. Do not report both codes for the same eyelid at the same session. If the excision exceeds 25% of the horizontal lid margin, report 67966 only. If the excision is ≤25%, report 67961 only. Reporting both codes will result in denial for bundling or duplicate billing.
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Defaulting to unspecified eyelid ICD-10-CM codes without querying: Every ICD-10-CM diagnosis code for ectropion, entropion, and floppy eyelid syndrome requires 6th or 7th character specification for laterality (right vs. left) and eyelid location (upper vs. lower). If the operative note documents “right lower lid lateral tarsal strip” but the diagnosis is documented only as “ectropion” without specifying senile vs. cicatricial, right vs. left, or upper vs. lower, query the surgeon to confirm the most specific diagnosis code. Do not default to unspecified codes (character 3 or 9) when the surgical eyelid is clearly documented. Unspecified codes may trigger payer denials for lack of specificity or medical necessity.
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Failing to track the 90-day global window for subsequent unrelated procedures or E/M visits: Billing staff must flag the surgical date and track the 90-day global window to prevent inappropriate separate billing for routine post-op care. If a patient returns within the global window for an unrelated E/M visit (e.g., diabetic retinopathy follow-up), append modifier -24 to the E/M code and document the unrelated nature of the visit explicitly. If a patient requires a second, unrelated surgical procedure during the global window (e.g., cataract surgery), append modifier -79 to the second procedure code. Failure to track the global period can result in overpayment, payer recoupment, and potential fraud investigation.
📎 Sources
AMA CPT 2025 Professional Edition · CMS 2025 Medicare Physician Fee Schedule Final Rule (CMS-1807-F) · CMS RVU25A Relative Value Files · NCCI Policy Manual Chapter 4, CMS 2024-2025 · ICD-10-CM Official Guidelines for Coding and Reporting FY2025 · ICD-10-PCS Official Guidelines for Coding and Reporting FY2025 · AAPC — “CPT Code 67966: Excision and Repair of Eyelid, Over One-Fourth of Lid Margin” (2025) · UnitedHealthcare Community Plan — “Brow Ptosis and Eyelid Repair” Policy (Updated January 2025) · Humana — “Eyebrow and Eyelid Repair” Coverage Policy HUM-2024-001 (August 2025) · CMS Medicare Claims Processing Manual, Chapter 12 — Physicians/Nonphysician Practitioners, Section 40 — Surgeons and Global Surgery