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CPT 21337: Closed Reduction of Nasal Septal Fracture

CPT code 21337 represents the closed manipulation (nonincisional reduction) of a nasal septal fracture to restore nasal form and function, with splinting applied when needed. This procedure is commonly performed in acute care settings to address symptomatic septal displacement that can impair breathing or lead to cosmetic deformity. Nationally, accurate coding of closed septal reductions affects clinical documentation, surgical scheduling, and claims processing for both commercial payers and government programs. Key payers discussed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find a concise clinical context for when CPT code 21337 is appropriate, typical sites of service, commonly reported payer considerations, and related billing themes such as service line placement and procedural reporting. The publication covers benchmark and policy-relevant topics useful to billing professionals and clinical teams, including typical utilization patterns and coding considerations for nonincisional septal management. Data not available in the input is noted where applicable.

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Billing Code Overview

CPT code 21337 describes closed manipulation of a nasal septal fracture without incision. The provider realigns the nasal septum to restore function and appearance and may apply a splint, if necessary, to maintain position during healing.

Service type: Closed reduction of nasal septal fracture
Typical site of service: Emergency department or outpatient clinic, including ambulatory surgical centers when immediate, noninvasive realignment is performed

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CPT 21337: Closed Reduction of Nasal Septal Fracture

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Billing Code Overview

Service type: Closed reduction of nasal septal fracture
Typical site of service: Emergency department or outpatient clinic, including ambulatory surgical centers when immediate, noninvasive realignment is performed

Clinical & Coding Specifications

Clinical Context

A 28-year-old male presents to the emergency department after an assault with nasal trauma. He reports nasal pain, bleeding, and difficulty breathing through the nose. Physical exam demonstrates a deviated, mobile nasal septum with external nasal swelling but no open lacerations. Point-of-care facial radiographs/CT correlate with an isolated nasal septal fracture without other facial fractures. The provider performs a closed nasal septal reduction at bedside under local or monitored sedation: topical anesthesia and local infiltration, manual manipulation of the septum to restore midline alignment, and placement of an internal splint or external nasal splint if needed. Post-procedure instructions include nasal packing/splint care, analgesia, avoidance of nasal trauma, and outpatient follow-up in 3–7 days for reassessment and splint removal.

Coding Specifications

Modifier	Description	When to Use
`11`	Normal, uncomplicated service	Use when the service is performed without complications and represents the providers usual service.
`22`	Increased procedural services	Use when work or time substantially exceeds typical for a closed nasal septal reduction (e.g., complex manipulation, prolonged reduction).
`23`	Unusual anesthesia	Use when general anesthesia or deep sedation is required unexpectedly for the reduction.
`26`	Professional component	Use if billing only the physicians professional interpretation or component in split billing scenarios.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as planned (e.g., aborted reduction).
`53`	Discontinued procedure	Use when the procedure is stopped due to patient condition or other unforeseen circumstances.
`59`	Distinct procedural service	Use to indicate a distinct procedure or service not typically reported together when another separate procedure is performed the same day.
`76`	Repeat procedure by same physician	Use when the same physician repeats the closed reduction within the same operative episode.
`77`	Repeat procedure by another physician	Use when a different physician repeats the closed reduction in the same operative episode.
`50`	Bilateral procedure	Use when bilateral nasal structures are manipulated and payors require a bilateral modifier for reporting.
`26`	Professional component	Use when only the professional portion of a service is billed (duplicate listed to reflect common usage).
`LT`	Left side	Use to indicate a left-sided anatomic focus when required by payer policy.
`RT`	Right side	Use to indicate a right-sided anatomic focus when required by payer policy.

Taxonomy Code	Specialty	Notes
207Q00000X	Otolaryngology (ENT)	Otolaryngologists most commonly perform nasal septal reductions in clinic, ED, or OR.
207RI0200X	Plastic Surgery	Facial plastic surgeons perform reductions when cosmetic alignment and complex nasal deformity are present.
2080S0004X	Emergency Medicine	Emergency physicians frequently perform bedside closed reductions in acute settings.
207L00000X	General Surgery	General surgeons with facial trauma experience may perform reductions in some settings.
332B00000X	Anesthesiology	Anesthesiologists provide sedation or general anesthesia for reductions performed in the OR.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S02.2XXA`	Fracture of nasal bones, initial encounter	Nasal bone fractures commonly accompany septal fractures and prompt evaluation for closed reduction.
`S01.2XXA`	Laceration of nose, initial encounter	Nasal lacerations may coexist with septal trauma and influence timing and approach to reduction.
`S00.31XA`	Contusion of nose, initial encounter	Nasal contusion with septal deviation can warrant manual realignment to restore airway function.
`J34.2`	Deviated nasal septum	Chronic or acute septal deviation impacting breathing; acute fractures can produce similar presentations.
`T14.8`	Other injury of other specified body region	Used when the nasal septal injury is part of multiple unspecified injuries requiring coding specificity.
`S02.209A`	Fracture of nasal bones, unspecified, initial encounter	Alternate code for nasal bone fracture when sidedness or detail is not specified on initial encounter.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`21337`	Closed treatment of nasal septal fracture; without incision, including splinting	Primary procedure: manipulation and realignment of the nasal septum without an external incision.
`30420`	Closed treatment of nasal bone fracture; simple; with or without manipulation	Often performed together when nasal bone fracture coexists with septal fracture; may be billed separately if distinct.
`30930`	Repair, complex, open or closed, of nasal vestibular stenosis or nasal airway obstruction	Performed when persistent airway obstruction requires more extensive surgical correction after initial reduction.
`30140`	Submucous resection inferior turbinate, partial or complete, any method	May be performed subsequently for persistent nasal obstruction not resolved by septal reduction.
`99283`	Emergency department visit, moderate complexity	Typical ED evaluation code when closed septal reduction is performed in the emergency setting.
`99213`	Office or other outpatient visit, established patient, low to moderate complexity	Typical pre- or post-procedure outpatient visit code for follow-up and splint removal.

CPT 21315: Closed Reduction of Nasal Bone Fracture

CPT-21320-CLOSED-REDUCTION-NASAL-BONE-FRACTURE-SPLINTING

CPT 21320: Closed Reduction of Nasal Bone Fracture with Splinting

CPT-21325-NASAL-FRACTURE-REDUCTION-NASAL-INCISION

CPT 21325: Nasal Fracture Reduction via Nasal Incision

CPT-21330-COMPLEX-NASAL-FRACTURE-REDUCTION-FIXATION

CPT 21330: Reduction and Fixation of Complex Nasal Fracture

CPT-21335-OPEN-REDUCTION-NASAL-BONE-NASAL-SEPTUM-FRACTURE

CPT 21335: Open Reduction of Nasal Bone and Nasal Septum Fracture

CPT-21336-NASAL-SEPTUM-FRACTURE-REDUCTION-OPEN

CPT 21336: Reduction of Nasal Septum Fracture, Open Approach

CPT-21338-NASAL-ETHMOID-FRACTURE-REDUCTION-NASAL-INCISION

CPT 21338: Reduction of Nasal and Ethmoid Bone Fracture via Nasal Incision

CPT-21339-NASAL-ETHMOID-FRACTURE-REDUCTION-EXTERNAL-FIXATION

CPT 21339: Open Reduction, External Fixation of Nasal and Ethmoid Fractures

CPT-21340-NASAL-ETHMOID-FRACTURE-OPEN-REPAIR

CPT 21340: Open Repair of Nasal and Ethmoid Fracture

CPT-21343-FRONTAL-SINUS-DEPRESSED-FRACTURE-REPAIR

CPT 21343: Repair of Depressed Frontal Sinus Fracture

Showing 1–10 of 53

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`11`	Normal, uncomplicated service	Use when the service is performed without complications and represents the providers usual service.
`22`	Increased procedural services	Use when work or time substantially exceeds typical for a closed nasal septal reduction (e.g., complex manipulation, prolonged reduction).
`23`	Unusual anesthesia	Use when general anesthesia or deep sedation is required unexpectedly for the reduction.
`26`	Professional component	Use if billing only the physicians professional interpretation or component in split billing scenarios.
`52`	Reduced services	Use when the procedure is partially reduced or not completed as planned (e.g., aborted reduction).
`53`	Discontinued procedure	Use when the procedure is stopped due to patient condition or other unforeseen circumstances.
`59`	Distinct procedural service	Use to indicate a distinct procedure or service not typically reported together when another separate procedure is performed the same day.
`76`	Repeat procedure by same physician	Use when the same physician repeats the closed reduction within the same operative episode.
`77`	Repeat procedure by another physician	Use when a different physician repeats the closed reduction in the same operative episode.
`50`	Bilateral procedure	Use when bilateral nasal structures are manipulated and payors require a bilateral modifier for reporting.
`26`	Professional component	Use when only the professional portion of a service is billed (duplicate listed to reflect common usage).
`LT`	Left side	Use to indicate a left-sided anatomic focus when required by payer policy.
`RT`	Right side	Use to indicate a right-sided anatomic focus when required by payer policy.

Taxonomy Code	Specialty	Notes
207Q00000X	Otolaryngology (ENT)	Otolaryngologists most commonly perform nasal septal reductions in clinic, ED, or OR.
207RI0200X	Plastic Surgery	Facial plastic surgeons perform reductions when cosmetic alignment and complex nasal deformity are present.
2080S0004X	Emergency Medicine	Emergency physicians frequently perform bedside closed reductions in acute settings.
207L00000X	General Surgery	General surgeons with facial trauma experience may perform reductions in some settings.
332B00000X	Anesthesiology	Anesthesiologists provide sedation or general anesthesia for reductions performed in the OR.

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`S02.2XXA`	Fracture of nasal bones, initial encounter	Nasal bone fractures commonly accompany septal fractures and prompt evaluation for closed reduction.
`S01.2XXA`	Laceration of nose, initial encounter	Nasal lacerations may coexist with septal trauma and influence timing and approach to reduction.
`S00.31XA`	Contusion of nose, initial encounter	Nasal contusion with septal deviation can warrant manual realignment to restore airway function.
`J34.2`	Deviated nasal septum	Chronic or acute septal deviation impacting breathing; acute fractures can produce similar presentations.
`T14.8`	Other injury of other specified body region	Used when the nasal septal injury is part of multiple unspecified injuries requiring coding specificity.
`S02.209A`	Fracture of nasal bones, unspecified, initial encounter	Alternate code for nasal bone fracture when sidedness or detail is not specified on initial encounter.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`21337`	Closed treatment of nasal septal fracture; without incision, including splinting	Primary procedure: manipulation and realignment of the nasal septum without an external incision.
`30420`	Closed treatment of nasal bone fracture; simple; with or without manipulation	Often performed together when nasal bone fracture coexists with septal fracture; may be billed separately if distinct.
`30930`	Repair, complex, open or closed, of nasal vestibular stenosis or nasal airway obstruction	Performed when persistent airway obstruction requires more extensive surgical correction after initial reduction.
`30140`	Submucous resection inferior turbinate, partial or complete, any method	May be performed subsequently for persistent nasal obstruction not resolved by septal reduction.
`99283`	Emergency department visit, moderate complexity	Typical ED evaluation code when closed septal reduction is performed in the emergency setting.
`99213`	Office or other outpatient visit, established patient, low to moderate complexity	Typical pre- or post-procedure outpatient visit code for follow-up and splint removal.

CPT 21315: Closed Reduction of Nasal Bone Fracture

CPT-21320-CLOSED-REDUCTION-NASAL-BONE-FRACTURE-SPLINTING

CPT 21320: Closed Reduction of Nasal Bone Fracture with Splinting

CPT-21325-NASAL-FRACTURE-REDUCTION-NASAL-INCISION

CPT 21325: Nasal Fracture Reduction via Nasal Incision

CPT-21330-COMPLEX-NASAL-FRACTURE-REDUCTION-FIXATION

CPT 21330: Reduction and Fixation of Complex Nasal Fracture

CPT-21335-OPEN-REDUCTION-NASAL-BONE-NASAL-SEPTUM-FRACTURE

CPT 21335: Open Reduction of Nasal Bone and Nasal Septum Fracture

CPT-21336-NASAL-SEPTUM-FRACTURE-REDUCTION-OPEN

CPT 21336: Reduction of Nasal Septum Fracture, Open Approach

CPT-21338-NASAL-ETHMOID-FRACTURE-REDUCTION-NASAL-INCISION

CPT 21338: Reduction of Nasal and Ethmoid Bone Fracture via Nasal Incision

CPT-21339-NASAL-ETHMOID-FRACTURE-REDUCTION-EXTERNAL-FIXATION

CPT 21339: Open Reduction, External Fixation of Nasal and Ethmoid Fractures

CPT-21340-NASAL-ETHMOID-FRACTURE-OPEN-REPAIR

CPT 21340: Open Repair of Nasal and Ethmoid Fracture

CPT-21343-FRONTAL-SINUS-DEPRESSED-FRACTURE-REPAIR

CPT 21343: Repair of Depressed Frontal Sinus Fracture

Showing 1–10 of 53

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

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CPT 21337: Closed Reduction of Nasal Septal Fracture

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Billing Code Overview

OpenPayer

CPT 21337: Closed Reduction of Nasal Septal Fracture

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Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

References