💋 CPT 40654 — Repair Lip, Full Thickness; Over One-Half Vertical Height, Or Complex
Quick Reference
wRVU: 5.34 | Global Period: 090 | Assistant Payable: Documentation-dependent | Bilateral Indicator: 0 Rule: CPT 40654 carries a 90-day major surgery global period, bundling routine postoperative lip care and wound checks into the surgical fee.⁴ The bilateral indicator of 0 reflects that the lip is a single midline structure rather than a paired anatomic site, so modifier -50 is not appropriate for this code. Assistant-at-surgery payment requires supporting documentation of medical necessity given the moderate-complexity nature of full-thickness, over-half-height lip repairs.⁵ This code is distinguished from 40650 and 40652 strictly by the extent of vertical height involved or by overall procedural complexity.
📋 Clinical Description
CPT 40654 describes the full-thickness surgical repair of a lip defect — whether traumatic, surgically created, or congenital — that spans more than one-half of the lip’s vertical height, or that is otherwise complex in configuration. The repair requires meticulous layered closure of the orbicularis oris muscle, submucosa, and mucosa, with precise alignment of the vermilion border (the “white roll”) to avoid a visible step-off deformity. This code differs from 40650, which is reserved for vermilion-only repairs not crossing the lip margin, and from 40652, which applies to full-thickness repairs crossing the vermilion border but involving up to half the vertical height only.
Compared with cleft lip-specific reconstruction codes such as 40700, which describe formal primary cleft lip/nasal deformity repair with specialized flap techniques, CPT 40654 is used more broadly for acute traumatic lacerations, dog bites, surgically created defects following lesion excision, or straightforward congenital lip clefts repaired without the complex nasal correction bundled into 40700. Selection between 40654 and its siblings hinges entirely on the documented vertical height involved and whether the defect is described as anatomically complex.⁶
This procedure may be performed in the following clinical contexts:
- Traumatic lip laceration — Following blunt or sharp trauma, animal bites, or motor vehicle accidents causing a full-thickness lip wound exceeding half the vertical lip height.
- Post-excisional defect closure — After excision of a lip lesion, skin cancer, or benign growth leaves a full-thickness defect requiring primary layered closure.
- Congenital cleft lip repair — For straightforward unilateral or bilateral cleft lip defects repaired without the additional nasal reconstruction captured under 40700.
- Iatrogenic or self-inflicted injury repair — Closure of full-thickness lip wounds resulting from prior surgical procedures or accidental self-injury.
- Revision of prior lip repair — Correction of a poorly healed or dehisced lip wound requiring re-approximation of muscle and mucosal layers.
🔬 Anatomical & Procedural Considerations
| Variant | Mechanism |
|---|---|
| Layered Muscular Closure | The orbicularis oris muscle is carefully re-approximated in a distinct suture layer to restore oral sphincter function and prevent lip notching. Failure to properly reapproximate this muscle layer can result in a visible “whistle deformity” or functional impairment of lip competence. This layer is closed prior to mucosal and skin closure in a standard three-layer technique. |
| Vermilion Border Alignment | Precise realignment of the vermilion-cutaneous junction is critical to avoid a cosmetically obvious step-off at the white roll. Surgeons often place the first suture at this landmark before proceeding with the remainder of the closure to ensure accurate alignment. Even a 1-2 mm malalignment is noticeable and considered an unacceptable cosmetic outcome. |
| Complex/Cleft Configuration | When the defect involves irregular wound margins, tissue loss requiring local flap advancement, or congenital cleft anatomy, the repair is classified as “complex” even if the vertical height is technically less than half, justifying use of 40654 over 40652. This variant often requires additional undermining or small local tissue rearrangement to achieve tension-free, layered closure. |
Clinical Pearl
Always document the specific vertical height of the defect as a percentage or fraction of total lip height, along with an explicit statement of complexity (e.g., irregular margins, tissue loss, muscle disruption) when reporting 40654 over 40652, since payers frequently request this detail to substantiate code selection on audit.⁶
✅ Procedure Includes
- Local or regional anesthesia administration for lip block or field infiltration.
- Wound exploration and debridement of nonviable tissue margins prior to closure.
- Layered closure of the orbicularis oris muscle to restore lip sphincter function.
- Precise realignment and closure of the vermilion border landmark.
- Mucosal layer closure on the intraoral aspect of the lip.
- Skin closure of the external cutaneous lip surface.
- Application of a standard postoperative dressing.
❌ Excludes / Do Not Report Together
| Code | Description | Relationship |
|---|---|---|
| 40650 | Repair lip, full thickness; vermilion only | Mutually exclusive by extent — 40654 is limited to vermilion-only repairs not crossing the lip margin, whereas 40654 requires full-thickness closure crossing the vermilion border over more than half the vertical height. |
| 40652 | Repair lip, full thickness; up to half vertical height | Distinguished purely by the extent of vertical height involved; only one of 40652 or 40654 should be reported for a single lip repair based on documented height and complexity. |
| 12013 | Simple repair of superficial wounds of face, ears, eyelids, nose, lips, and/or mucous membranes; 2.6 cm to 5.0 cm | Not reported together with 40654 for the same wound, since simple repair codes apply only to superficial, non-full-thickness lacerations rather than the layered, full-thickness closure described by 40654. |
| 40700 | Plastic repair of cleft lip/nasal deformity; primary, partial or complete, unilateral | Represents a more extensive formal cleft lip and nasal reconstruction bundling additional nasal correction work; it should not be reported in addition to 40654 for the same operative session on the same defect. |
Bundling Alert
Because CPT 40654 carries a 90-day global surgical period, routine postoperative wound checks, suture removal, and uncomplicated healing visits related to the lip repair are bundled into the global fee and are not separately billable without an appropriate modifier documenting unrelated or staged care. Audit risk is elevated when 40654 is billed alongside a simple repair code (12011-12018) for the same wound, since this represents inappropriate unbundling of a single full-thickness closure into a simple-repair equivalent.
🌳 Code Tree — Surgery: Digestive System (Lips)
CPT 40650-40761 Surgery: Lips, Vestibule of Mouth, and Palate
│
├── 40650-40654 Repair (Cheiloplasty) Procedures on the Lips
│ ├── 40650 Repair lip, full thickness; vermilion only (Global: 090)
│ ├── 40652 Repair lip, full thickness; up to half vertical height (Global: 090)
│ ├── ▶▶ 40654 ◀◀ Repair lip, full thickness; over one-half vertical height, or complex ← YOU ARE HERE (Global: 090)
│ └── 40700 Plastic repair of cleft lip/nasal deformity; primary, unilateral (Global: 090)
│
├── 40800-40899 Excision, Destruction, Repair Procedures on Vestibule of Mouth
│ ├── 40808 Biopsy, vestibule of mouth
│ └── 40840 Vestibuloplasty; anterior
│
└── 42200-42225 Palate and Uvula Repair
├── 42200 Palatoplasty for cleft palate, soft and/or hard palate only
└── 42225 Correction of nasal deformity associated with cleft lip and/or palate
💰 RVU & Reimbursement Profile
| Component | Value |
|---|---|
| Work RVU | 5.34 |
| Global Period | 090 |
| Bilateral Indicator | 0 — 150% bilateral adjustment does not apply |
| Assistant Surgeon | Documentation required (indicator 0) |
| Co-Surgeon | Not typically applicable |
| Team Surgery | Not typically applicable |
| PC/TC Split | 0 — Physician service, PC/TC concept does not apply |
| Modifier -51 Exempt | No |
| Anesthesia | Typically local/regional field block performed by the operating surgeon and included in the global package rather than billed separately |
Bilateral Billing Rules
Because the lip is a single midline anatomic structure rather than a paired organ, modifier -50 and the 150% bilateral payment adjustment do not apply to CPT 40654 regardless of whether the defect extends across the midline. If two anatomically distinct lip lacerations are repaired in the same session (e.g., separate upper and lower lip wounds), each should be evaluated individually for correct code selection, with modifier -59 appended to the second procedure if it represents a truly distinct wound.
🏷️ Modifier Reference
| Modifier | Name | When to Apply |
|---|---|---|
| -RT | Right Side | Applicable only if the repair is clearly documented as confined to the right portion of the lip in a segmental or complex repair scenario. |
| -LT | Left Side | Applicable only if the repair is clearly documented as confined to the left portion of the lip in a segmental or complex repair scenario. |
| -22 | Increased Procedural Services | Apply when the repair is substantially more extensive or difficult than typical, such as extensive tissue loss requiring local flap advancement, with supporting documentation. |
| -51 | Multiple Procedures | Use when 40654 is reported with other significant, separately payable procedures performed in the same session, subject to multiple-procedure payment reduction. |
| -52 | Reduced Services | Apply when the repair performed is less extensive than the full code description, such as a partial closure electively reduced in scope. |
| -58 | Staged Procedure | Use when a planned staged repair or revision is performed by the same physician during the 90-day global period of a prior related lip surgery. |
| -59 | Distinct Procedural Service | Apply when 40654 represents a separate, distinct wound or session from another same-day procedure that might otherwise be bundled. |
| -78 | Return to Operating Room | Use when the patient requires an unplanned return to the OR for a related complication, such as wound dehiscence, during the global period. |
| -79 | Unrelated Procedure | Apply when an unrelated procedure is performed by the same physician during the 90-day global period following the original lip repair. |
🩺 Common ICD-10-CM Pairings
Primary Diagnosis Group
| ICD-10 | Description | HCC? | Notes |
|---|---|---|---|
| S01.531A | Laceration without foreign body of lip, initial encounter | No | Most common primary indication for acute traumatic full-thickness lip repair at the initial encounter. |
| Q36.9 | Cleft lip, unilateral | No | Reported for congenital unilateral cleft lip repaired without the additional nasal reconstruction bundled into 40700. |
Secondary Group
| ICD-10 | Description | HCC? | Notes |
|---|---|---|---|
| Z42.2 | Encounter for plastic and reconstructive surgery following medical procedure or healed injury of other parts of head and neck | No | Appropriate for staged or revision lip repairs performed after a prior healed injury or procedure. |
Etiology / Complication
| ICD-10 | Description | HCC? | Notes |
|---|---|---|---|
| T81.31XA | Disruption of external operation (surgical) wound, not elsewhere classified, initial encounter | No | Reported when a prior lip repair has dehisced and requires re-closure under 40654 during a subsequent encounter. |
Coding Specificity Reminder
Always code to the highest level of specificity available, including laterality where applicable and the correct encounter character (A for initial, D for subsequent, S for sequela) for traumatic injury codes. When reporting congenital cleft lip, verify whether the defect is documented as unilateral, bilateral, or median, since ICD-10-CM Q36 codes distinguish laterality at the fourth-character level and using an unspecified or parent-level code when a more specific option is documented is not appropriate.
🏥 MS-DRG Considerations
CPT 40654 is overwhelmingly reported in outpatient, emergency department, and ASC settings rather than as a primary driver of an inpatient stay, so it rarely determines MS-DRG assignment on its own. When performed as part of a broader inpatient admission for facial trauma, the lip repair procedure typically maps to an ICD-10-PCS Repair code that is incidental to the principal procedure and diagnosis driving DRG assignment, such as multiple significant trauma or other facial reconstruction groupers. Coders working in an inpatient setting should focus DRG-relevant procedure coding on the most resource-intensive concurrent procedure rather than the lip repair itself.
🔧 ICD-10-PCS Equivalents
| PCS Code | Full Description | Modality |
|---|---|---|
| 0CQ0XZZ | Repair upper lip, external approach | Suture repair |
| 0CQ1XZZ | Repair lower lip, external approach | Suture repair |
| 0CU0X7Z | Supplement upper lip with autologous tissue substitute, external approach | Tissue rearrangement/flap |
| 0CU1X7Z | Supplement lower lip with autologous tissue substitute, external approach | Tissue rearrangement/flap |
PCS Character Analysis
| Position | Character | Value | Definition |
|---|---|---|---|
| 1 | Section | 0 | Medical and Surgical section, covering the vast majority of operating room procedures. |
| 2 | Body System | C | Mouth and Throat body system, which includes the lips. |
| 3 | Root Operation | Q | Repair — restoring, to the extent possible, a body part to its normal anatomic structure and function by other than the other root operations. |
| 4 | Body Part | 0 or 1 | Specifies upper lip (0) or lower lip (1) as the anatomic site repaired. |
| 5 | Approach | X | External approach, since the lip surface is accessed directly without an internal cavity. |
| 6 | Device | Z | No device, since simple layered suture repair does not involve an implanted or applied device. |
| 7 | Qualifier | Z | No qualifier, as no additional qualifying detail applies to a straightforward repair procedure. |
Root Operation Comparison
Repair (Q) is used for straightforward suture closure of a lip defect, whereas Supplement (U) is reserved for cases where autologous or synthetic tissue is used to reinforce or augment the lip beyond simple closure, such as complex flap-based reconstruction. When a lip repair involves local tissue rearrangement or flap advancement to close a larger defect, Supplement rather than Repair may be the more accurate root operation.
📝 Coding Examples
Example 1
Clinical Scenario: A 28-year-old male presents to the emergency department after being struck in the face during an altercation, sustaining a full-thickness laceration of the lower lip that extends across the vermilion border and involves approximately two-thirds of the vertical lip height. The ED physician performs layered closure, re-approximating the orbicularis oris muscle, aligning the vermilion border precisely, and closing the mucosal and skin layers in sequence. The patient tolerates the procedure well under local anesthesia and is discharged with wound care instructions.
| Field | Code | Rationale |
|---|---|---|
| CPT | 40654 | Reports the full-thickness lip repair involving more than half the vertical height of the lower lip. |
| PDx | S01.531A | Documents the traumatic lip laceration without foreign body at the initial encounter. |
Note
Example 2
Clinical Scenario: A 3-month-old infant with a diagnosed unilateral cleft lip undergoes primary surgical repair by a plastic surgeon. The procedure involves full-thickness closure of the lip defect with careful muscle and vermilion border realignment, without additional nasal deformity correction being performed in this session. The surgery is performed under general anesthesia in a hospital operating room, and the infant recovers without complication.
| Field | Code | Rationale |
|---|---|---|
| CPT | 40654 | Reports the full-thickness cleft lip repair since no formal nasal deformity correction (captured under 40700) was performed in this session. |
| PDx | Q36.9 | Documents the congenital unilateral cleft lip as the underlying diagnosis. |
Warning
Example 3
Clinical Scenario: A 55-year-old woman returns three weeks after an initial lip laceration repair with partial wound dehiscence at the vermilion border, requiring re-exploration and re-closure of the muscle and mucosal layers by the same surgeon who performed the original repair. The revision is performed in the office under local anesthesia, and the wound is re-approximated with attention to correcting the prior vermilion malalignment.
| Field | Code | Rationale |
|---|---|---|
| CPT | 40654-58 | Reports the staged re-repair of the dehisced full-thickness lip wound performed by the same physician during the global period of the original surgery, appended with modifier 58. |
| PDx | T81.31XA | Documents the disruption of the external surgical wound as the reason for the staged re-repair. |
Global period reminder
⚠️ Common Coding Pitfalls
- Confusing height thresholds — Selecting 40654 when the documented defect involves less than half the vertical lip height and no complexity is described, which should instead be reported as 40652.
- Missing complexity documentation — Failing to document why a repair under half the vertical height is nonetheless “complex,” which is required to justify 40654 over 40652 in borderline cases.
- Inappropriate unbundling with simple repair codes — Reporting a simple repair code (12011-12018) in addition to 40654 for the same full-thickness wound, when only the full-thickness repair code should be reported.
- Incorrect modifier for staged care — Using modifier -79 (unrelated procedure) instead of modifier -58 (staged/related procedure) when a revision or re-repair is directly related to the original lip repair during the global period.
- Overlooking cleft lip code distinctions — Failing to distinguish a simple full-thickness cleft lip repair (40654) from a formal primary cleft lip/nasal deformity repair (40700), which involves substantially more extensive reconstructive work.
- Unbundling global period visits — Separately billing routine postoperative wound checks or suture removal visits performed within the 90-day global period without an appropriate modifier to indicate unrelated or staged care.
📚 Sources
¹ American Medical Association, CPT 2026 Professional Edition, Surgery — Digestive System, Lips, code 40654. ² Centers for Medicare & Medicaid Services, National Physician Fee Schedule Relative Value File, 2026 (work RVU 5.48, global period 090). ³ Centers for Medicare & Medicaid Services, MS-DRG Definitions Manual, general facial trauma and reconstruction procedure grouping logic, FY2026. ⁴ Centers for Medicare & Medicaid Services, Global Surgery Policy and Indicator descriptions, Medicare Claims Processing Manual, 2026. ⁵ Centers for Medicare & Medicaid Services, Assistant at Surgery Payment Indicator descriptions, Medicare Physician Fee Schedule, 2026. ⁶ American Academy of Professional Coders, coding guidance distinguishing CPT 40650-40654 lip repair codes by vertical height and complexity.
Sources listed above correspond to superscript citations throughout this note. Verify all Medicare payment figures against your current CMS PFS Lookup tool and applicable MAC LCD prior to claim submission. Please use the latest AAPC/AHIMA Coding Books to verify each code within this note.