21330

🧬CPT Code 21330: Closed Treatment Nasal Bone Fracture Without Manipulation

Overview

CPT code 21330 describes closed treatment of a nasal bone fracture without manipulation. This is a non-operative procedure where the physician diagnoses and manages a nasal fracture but determines that no manual reduction or repositioning of the bone fragments is necessary. The fracture alignment is acceptable, and the injury can heal properly with conservative management alone.

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Key Concept: “Closed treatment” means no surgical incision is made. “Without manipulation” means the physician does not manually realign the fractured bones. Think of this as the “watchful waiting” approach to nasal fractures—the fracture exists, but nature can handle the healing without intervention.

Clinical Description

When a patient presents with a nasal bone fracture, the treating physician (typically an otolaryngologist, facial plastic surgeon, or emergency medicine physician who then refers for definitive management) performs a clinical evaluation including:

• History: Mechanism of injury (assault, sports injury, fall, motor vehicle accident)
• Physical examination: External inspection for deviation, swelling, ecchymosis; palpation for crepitus, tenderness, or instability
• Nasal endoscopy: Assessment of internal structures, septal hematoma evaluation
• Imaging: Plain radiographs or CT scan to confirm fracture and assess alignment

If the fracture fragments are in acceptable anatomic position with minimal displacement, and there’s no significant cosmetic or functional concern requiring manipulation, the provider documents conservative management and bills 21330.

Note

This code encompasses the entire treatment episode during the global period, including initial evaluation, counseling, pain management recommendations, activity restrictions, and follow-up visits to ensure proper healing.

Work RVU (wRVU)

The work RVU value for CPT 21330 should be verified against the 2026 CMS Medicare Physician Fee Schedule (MPFS) relative value files. Work RVUs quantify the physician time, technical skill, mental effort, judgment, and stress involved in performing the service¹. For this low-intensity, non-manipulative nasal fracture management, the wRVU is typically modest (approximately 0.75-0.85 range, though specific 2026 values should be confirmed via official CMS files).

Important: Many procedural codes saw work RVUs reduced by 2.5% in 2026 due to CMS’s efficiency adjustment policy, which may affect this code’s final value².

Global Period

Global Days: 10 days (010 global period)This means the CPT includes all related E/M services for 10 days following the procedure, including the day of the procedure itself. Any separately identifiable service during this period would require modifier -25 or -79 as appropriate

Assistant Payable

No - Assistant-at-surgery is not payable for CPT 21330³. This procedure does not meet Medicare criteria for assistant surgeon reimbursement as documented in the Medicare Physician Fee Schedule Database. The service is straightforward enough that a single provider can perform it without surgical assistance.

Includes

CPT 21330 encompasses the complete episode of care for a nasal bone fracture managed non-operatively without manipulation:

• Initial clinical evaluation: History and physical examination of the nasal injury
• Diagnostic assessment: Evaluation of fracture stability, displacement, and cosmetic/functional impact
• Imaging interpretation: Review of nasal bone radiographs or CT scans (imaging codes billed separately)
• Patient counseling: Discussion of injury, natural healing process, expected outcomes
• Conservative management planning: Instructions for ice application, elevation, pain management, activity restrictions
• Septal hematoma screening: Critical evaluation to rule out this complicating condition requiring drainage
• All follow-up care: Return visits within the 10-day global period for reassessment, wound checks, or concerns
• Documentation: Medical record documentation justifying that manipulation was not indicated

Clinical Reasoning: The provider determines that the fracture alignment is acceptable—either there is minimal displacement, or the displacement will not result in functional (airway obstruction) or cosmetic (visible deformity) sequelae that warrant intervention. This is a clinical judgment call requiring experience in nasal trauma assessment.

Excludes

The following scenarios/services are NOT included in 21330 and require different coding:

• Open reduction: Surgical incision and internal fixation (CPT 21325, 21335, 21336, 21337, 21338, 21339, 21340, 21343, 21344, 21345, 21346, 21347)
• Closed reduction with manipulation: Active manual repositioning of bone fragments (CPT 21335)
• Rhinoplasty procedures: Cosmetic or functional nasal reconstruction (CPT 30400-30630 series)
• Septal hematoma drainage: If present, coded separately (CPT 30020)
• Nasal packing: If performed as a separate procedure (use appropriate supply/procedure codes)
• Initial emergency department evaluation: The E/M service by the ED physician (codes 99281-99285) is separate when a different provider performs the definitive treatment
• Imaging studies: Nasal bone X-rays (70160), facial CT (70486, 70487, 70488), or maxillofacial CT are billed separately
• Anesthesia services: If anesthesia were provided (though unusual for this non-manipulative approach), it would be billed separately

MS-DRG

Not applicable. MS-DRGs (Medicare Severity Diagnosis Related Groups) are used for inpatient hospital billing only. CPT 21330 is an outpatient/ambulatory surgical procedure typically performed in emergency departments, urgent care centers, or office settings. The facility would bill using the CPT code on an outpatient claim (UB-04 with Type of Bill 13x), not under a DRG system⁴.

If the patient were admitted: Admission for isolated nasal fracture without manipulation would be highly unusual and likely not medically necessary. However, if a patient with multiple traumatic injuries including nasal fracture were admitted, they might fall under trauma-related DRGs (e.g., DRG 157-159 for dental and oral diseases, or more commonly trauma DRGs if other injuries are present).

Related ICD-10-CM Diagnosis Codes

CPT 21330 would typically be billed with one of these diagnosis codes:

• S02.2XXA: Fracture of nasal bones, initial encounter for closed fracture
• S02.2XXD: Fracture of nasal bones, subsequent encounter for fracture with routine healing
• S02.2XXG: Fracture of nasal bones, subsequent encounter for fracture with delayed healing
• S02.2XXK: Fracture of nasal bones, subsequent encounter for fracture with nonunion
• S02.2XXS: Fracture of nasal bones, sequela

7th Character Extensions are mandatory:

• A = Initial encounter (most common with 21330)
• D = Subsequent encounter, routine healing
• G = Subsequent encounter, delayed healing
• K = Subsequent encounter, nonunion
• S = Sequela

Clinical Pearl: The initial encounter (“A” extension) is used for the first time the patient receives active treatment for the injury, not necessarily the first time they present to any healthcare facility. If the ED physician evaluates and the ENT surgeon treats the next day, the ENT surgeon still uses “A” for the initial definitive treatment.

Code Tree / Family Relationships

Nasal Bone Fracture Treatment Spectrum

Nasal Fracture Management │ ├── Closed Treatment (No Incision) │ ├── 21330 - Without manipulation │ └── 21335 - With manipulation │ └── Open Treatment (Surgical Incision) ├── 21336 - Open treatment; uncomplicated ├── 21337 - Open treatment; with mobilization of intranasal tissues ├── 21338 - Open treatment; requiring multiple surgical approaches ├── 21339 - Open treatment; with bone grafting ├── 21340 - Percutaneous treatment with internal/external fixation ├── 21343 - Open treatment of depressed frontal sinus fracture ├── 21344 - Open treatment with osteotomies ├── 21345 - Open treatment with LeFort I osteotomy ├── 21346 - Open treatment with LeFort II osteotomy └── 21347 - Open treatment with LeFort III osteotomy

Distinction Between 21330 and 21335

This is the most critical coding decision in nasal fracture management:

Feature	21330	21335
Manipulation	None	Manual reduction performed
Anesthesia	Usually none needed	Local or general anesthesia typical
Physician Work	Evaluation only	Evaluation + reduction technique
Timing	Any time post-injury	Usually within 7-10 days of injury
wRVU	Lower (~0.75-0.85)	Higher (~3.60-3.80)
Patient Experience	No procedure felt	Active repositioning of bones

Analogy:

Think of 21330 as diagnosing a crooked picture frame and deciding it’s “close enough” to leave it alone, while 21335 is actively straightening that picture frame. Both involve assessing the problem, but only one involves corrective action.

Coding Examples

Example 1: Clear-Cut 21330 Case

Scenario: A 28-year-old male presents to the ED 2 hours after being struck in the nose during a basketball game. He has moderate epistaxis (now controlled), periorbital ecchymosis, and nasal tenderness. Nasal bone X-rays confirm a non-displaced fracture of the left nasal bone. The ENT surgeon evaluates the patient, performs nasal endoscopy to rule out septal hematoma, and determines the alignment is cosmetically and functionally acceptable. The patient is counseled on ice application, elevation, analgesics, and to follow up in 1 week.

Coding:

• CPT: 21330
• ICD-10: S02.2XXA
• Modifier: None required

Example 2: 21330 with Subsequent Follow-Up

Scenario: Same patient returns 5 days later concerned about persistent swelling. The surgeon examines him, confirms normal healing, no infection, no septal hematoma development. Provides reassurance and continues conservative care.

Coding:

• No separate charge - This visit is included in the 10-day global period of 21330
• If documentation is needed: ICD-10 S02.2XXD (subsequent encounter)

Example 3: When NOT to Use 21330 - Use 21335 Instead

Scenario: A 45-year-old female fell down stairs 3 days ago. She presents with obvious leftward deviation of her nasal bridge. Nasal bone films show displaced fracture. The facial plastic surgeon performs closed reduction under local anesthesia in the procedure room, manually repositioning the bones to midline, then places internal nasal splints and external thermoplastic splint.

Coding:

• CPT: 21335 (NOT 21330)
• ICD-10: S02.2XXA
• Possible additional: 30300 if significant septal work performed

Example 4: Complex Coding Scenario - ED Physician and Specialist

Scenario: Patient presents to ED with nasal trauma. ED physician performs initial evaluation (Level 4 ED visit), orders imaging, consults ENT. ENT surgeon arrives, performs detailed examination, reviews imaging, determines no manipulation needed, initiates conservative management.

ED Physician Coding:

• CPT: 99284 (ED visit)
• ICD-10: S02.2XXA

ENT Surgeon Coding:

• CPT: 21330
• ICD-10**: S02.2XXA
• Modifier: Consider -57 if manipulation might be needed within global period

Rationale: Two different physicians, two separately reportable services. The ED physician provides emergency evaluation/stabilization; the ENT provides definitive fracture management.

Example 5: Bilateral Modifier Situation (Rare)

Scenario: Patient sustains bilateral nasal bone fractures (both left and right nasal bones fractured separately, documented on imaging). Both sides managed conservatively without manipulation.

Coding:

• CPT: 21330
• Modifier: -50 (bilateral procedure) - Use with caution
• ICD-10: S02.2XXA

Note: This is controversial. Most payers consider nasal fracture treatment as a unilateral service even when both nasal bones are involved, since the “nasal bone fracture” is treated as a single anatomic entity. Check payer policy before using modifier -50.

Clinical Documentation Requirements

To support billing 21330, documentation must demonstrate:

1. Fracture confirmed: Imaging evidence (X-ray, CT) or strong clinical evidence with clear documentation of why imaging was not obtained
2. Assessment performed: Physical examination findings including:
3. External appearance and alignment
4. Palpation findings
5. Intranasal examination (endoscopic or anterior rhinoscopy)
6. Septal hematoma ruled out
7. Decision-making documented: Clear statement that manipulation is not warranted because:
8. Minimal/no displacement
9. Acceptable cosmetic alignment
10. No functional impairment
11. Patient preference (if applicable)
12. Treatment plan: Conservative management approach detailed
13. Patient counseling: Discussion of natural history, expectations, warning signs

Documentation Template Example:

To support billing 21330, documentation must demonstrate:

Fracture confirmed: Imaging evidence (X-ray, CT) or strong clinical evidence with clear documentation of why imaging was not obtainedAssessment performed: Physical examination findings including:External appearance and alignmentPalpation findingsIntranasal examination (endoscopic or anterior rhinoscopy)Septal hematoma ruled outDecision-making documented: Clear statement that manipulation is not warranted because:Minimal/no displacementAcceptable cosmetic alignmentNo functional impairmentPatient preference (if applicable)Treatment plan: Conservative management approach detailedPatient counseling: Discussion of natural history, expectations, warning signs

Documentation Template Example:text

CopyASSESSMENT: Non-displaced left nasal bone fracture

EXAMINATION: External nasal examination shows minimal left-sided swelling and ecchymosis. No gross deviation or depression noted. Nasal bones non-tender to gentle palpation. Anterior rhinoscopy reveals patent bilateral nasal airways with no septal hematoma. Nasal septum midline.

IMAGING: Reviewed nasal bone radiographs confirming minimally displaced left nasal bone fracture with acceptable alignment.

TREATMENT DECISION: Given minimal displacement and acceptable cosmetic/ functional outcome, closed reduction with manipulation is not indicated. Conservative management recommended.

PLAN: Ice 20 minutes q2-3h while awake x 48 hours, head elevation, avoid contact sports x 6 weeks, ibuprofen 600mg PO q6h PRN pain. Return for follow-up in 7 days or sooner if increased swelling, difficulty breathing, fever, or drainage. Patient verbalized understanding and agreement.Modifiers Commonly Used with 21330

25: Significant, separately identifiable E/M service on same dayUse when: An E/M visit on the same day is separately documented and medically necessary beyond the typical evaluation included in 21330Example: Patient seen for unrelated chronic condition management, then sustains nasal injury during the visit

76: Repeat procedure by same physicianRare with 21330, but theoretically applicable if patient re-fractures nose and treatment repeated

77: Repeat procedure by different physicianSimilar to above, different provider

78: Unplanned return to procedure room during global periodIf unexpected complication requiring additional non-manipulative care in a procedure setting

79: Unrelated procedure during global periodExample: Patient develops unrelated facial infection during the 10-day global period requiring separate incision and drainage

LT / RT: Left/right side indicatorsGenerally not used with nasal fractures as the “nose” is considered a single midline structure, though technically two bones exist

Reimbursement Considerations

Medicare Payment (2026 Rates)

Based on the 2026 CMS conversion factors of $33.57forqualifyingAPMparticipantsand$33.40 for non-qualifying APM providers⁵:

Estimated Payment (using hypothetical 0.80 wRVU):Non-Facility Total RVU: ~2.5 (including work + practice expense + malpractice)Facility Total RVU: ~1.0 (facility absorbs practice expense)Non-facility payment: ~$83.50(variesbygeographiclocationwithGPCIadjustment)Facilitypayment:$33.40 (varies by geographic location)

Note: Actual payment varies significantly by:Geographic location (GPCI adjustments)Facility vs. non-facility settingPayer-specific fee schedulesContracted rates

Private Payer Variations

Most commercial payers use Medicare RBRVS methodology but with different conversion factors (typically 120-250% of Medicare rates). Always verify payer-specific policies regarding:Prior authorization requirementsTimely filing limitsMedical necessity criteriaModifier acceptance

Common Denial Reasons and Prevention

“Not medically necessary”Prevention: Document clear clinical rationale, imaging confirmation, why manipulation was not needed

“Included in E/M service”Prevention: Ensure treatment is separately documented beyond simple E/M; use modifier 25 appropriately if billing same-day E/M

“Global period issue”Prevention: Understand the 10-day global includes all follow-ups; use modifier 79 only for truly unrelated services

“Lack of specificity in diagnosis code”Prevention: Use complete ICD-10 code with 7th character extension (S02.2XXA, not just S02.2)

Quality and Safety Considerations

Critical “Don’t Miss” Diagnosis

Septal Hematoma: This is the most important complication to identify during nasal fracture evaluation. It appears as a boggy, bluish swelling of the nasal septum and requires urgent drainage (CPT 30020) to prevent:Septal necrosisSaddle nose deformitySeptal perforationAbscess formation

Action: ALWAYS perform intranasal examination when billing 21330. Document “no septal hematoma” explicitly.

Timing Considerations

Nasal fractures can be reduced up to approximately 7-10 days post-injury while still “fresh.” After 10-14 days, early healing makes closed reduction increasingly difficult. If a patient presents late and you determine manipulation is not feasible due to timing (but would otherwise be indicated), this still supports 21330, but documentation should reflect the timing issue.

Patient Counseling Points

When managing conservatively (21330), counsel patients on:Expected healing: 4-6 weeks for bone healing, up to 6 months for swelling resolutionCosmetic outcomes: Small residual deformity possible; late rhinoplasty an option if concerned after full healingFunctional outcomes: Breathing difficulties should improve; persistent obstruction warrants ENT follow-upRed flags: Fever, severe pain, purulent drainage, visual changes, severe headache → urgent returnActivity restrictions: Avoid contact sports 6-8 weeks; protect nose from reinjury

Relationship to Other Services

Services That Can Be Billed Same Day

Imaging interpretation: 70160 (nasal bone X-rays, professional component with modifier 26)Septal hematoma drainage: 30020 (if present, separate procedure)Laceration repair: 12011-12057 (if nasal soft tissue laceration present, different anatomic site)Foreign body removal: 30300 (if foreign material present)

Services in the Global Period

The 10-day global period includes:Return visits for fracture assessmentSuture removal (if any placed)Splint removal (if external splint placed)Routine postoperative care

It does NOT include:Treatment of complications (use modifier 78)Treatment of unrelated conditions (use modifier 79)Diagnostic procedures for new problems

Comparison to Similar Codes

21335 - Closed Treatment with Manipulation

wRVU: ~3.60 (approximately 4.5x higher than 21330)

Key Differences:Active manual reduction performedUsually requires anesthesiaHigher skill/intensityHigher reimbursementSpecific technique documented (external pressure, intranasal instrumentation, etc.)

Clinical Pearl: The decision between 21330 and 21335 is based on whether manipulation occurred, not whether it was “needed.” If you evaluate a significantly displaced fracture but the patient declines manipulation, you still code 21330, not 21335.

Emergency Department Visit (99281-99285)

These are separate and distinct from 21330:E/M codes: Evaluation and medical decision-making21330: Definitive fracture management

Can be billed together when performed by different physicians, or by same physician with modifier 25 and clear documentation of separately identifiable E/M service.

Specialty-Specific Considerations

Otolaryngology (ENT)

Most commonly billed by ENT surgeons. Often consulted from ED or see patients in office setting days after injury. May perform nasal endoscopy as part of evaluation (included in 21330, not separately billable on same day).

Facial Plastic Surgery

Frequently perform nasal fracture management. May have lower threshold for manipulation (21335) due to heightened cosmetic sensitivity. When billing 21330, documentation should address why conservative management provides acceptable cosmetic outcome.

Emergency Medicine

ED physicians may bill 21330 when they provide definitive fracture management without consultation. However, often they bill E/M visit and refer for ENT follow-up, in which case the ENT bills 21330 at subsequent visit.

Oral and Maxillofacial Surgery (OMFS)

OMFS surgeons may manage nasal fractures, especially when part of more complex facial fracture patterns. If isolated nasal fracture managed conservatively, 21330 is appropriate.

Compliance and Audit Risk

Low-Risk Profile

CPT 21330 is generally low audit risk because:Relatively low reimbursementClear clinical criteriaObjective imaging confirmation usually availableDistinct from high-value procedures

Documentation Best Practices to Minimize Risk

Image confirmation: Reference specific imaging with date/findingsClear decision: Explicitly state why manipulation not performedComplete examination: Document thorough nasal evaluation including internal structuresSeptal hematoma rule-out: Always document this was assessedFollow-up plan: Clear instructions demonstrate ongoing management

Red Flags for Auditors

Billing 21330 repeatedly for same patient (suggests possible unbundling)Billing 21330 and 21335 for same patient within short timeframe without clear documentation of distinct injuriesLack of imaging or clinical findings to support fracture diagnosisMissing 7th character on ICD-10 codeSame-day E/M without modifier 25 or distinct documentation

Evolution and Future Trends

Value-Based Care Implications

As healthcare shifts toward value-based models, conservative management (21330) may be increasingly valued over interventional approaches when outcomes are equivalent. Documentation of:Patient-centered decision-makingShared decision-making discussionsAppropriate resource utilization (avoiding unnecessary manipulation)

…can support quality metrics and value-based contracting.

Telemedicine Considerations

Post-pandemic, some follow-up care within the global period may occur via telehealth. While the global period services are not separately billable, documentation should note telehealth modality when used for continuity of care documentation purposes.

Practical Pearls

When in doubt about manipulation: If you’re unsure whether reduction was performed, review the anesthesia record and procedure note. True manipulation requires some form of anesthesia and active force application.

“Observation only” language: Using phrases like “non-operative management,” “observation,” or “conservative treatment” in documentation clearly supports 21330.

Patient refusal scenario: If manipulation is indicated but patient refuses, document the discussion and patient decision. Still code 21330 since no manipulation occurred.

Late presentation: Patient presents 3 weeks post-injury with healed but slightly deviated fracture. This is NOT 21330 (no active treatment of acute fracture). This would be an E/M visit with possible discussion of future rhinoplasty.

Pediatric considerations: Children’s nasal bones are more cartilaginous and may not show fracture on plain films. Clinical diagnosis is acceptable with clear documentation.

Brief Sources

¹ CMS Medicare Physician Fee Schedule 2026² CMS PFS Final Rule - Efficiency Adjustment Policy³ CMS Assistant-at-Surgery Policy Guidelines⁴ CMS MS-DRG Classification System Documentation⁵ ACOG 2026 Conversion Factor Summary