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HCPCS A4209: Syringe with Needle, Sterile 5 cc or Greater

HCPCS Level II code A4209 represents a sterile disposable syringe with an attached needle, 5 cc or greater. Nationally, this supply-level code is used across a range of outpatient and home care settings for parenteral medication administration, immunizations, and procedures requiring larger-volume syringes. Unit-level supply codes like A4209 matter because they affect billing for infusion services, home health supply claims, and ambulatory procedure reimbursement.

Key payers addressed include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find national benchmarks for unit pricing and utilization trends, payer coverage patterns, common billing modifiers and compliance considerations, and clinical context on when larger-volume sterile syringes are clinically indicated. The publication also outlines coding practice notes and typical sites of service where A4209 is billed.

This summary provides a concise reference for coding staff, revenue cycle professionals, and policy analysts seeking clarity on HCPCS Level II code A4209, its use cases, and the payer landscape for supply billing in outpatient and home-based care.

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Billing Code Overview

HCPCS Level II code A4209 describes a sterile syringe with needle, 5 cc or greater, each. This item is a single-use, sterile disposable syringe that includes an attached needle and is intended for parenteral administration of medications or fluids.

Service type: Durable medical/supply item for injection/aspiration procedures

Typical site of service: Outpatient clinics, physician offices, ambulatory surgical centers, infusion centers, and home health settings

Data not available in the input.

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HCPCS A4209: Syringe with Needle, Sterile 5 cc or Greater

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Sign up for hcpcs A4209 policy alerts

Get alerted when payer policies referencing A4209 are released or updated.

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Receive email alerts as soon as relevant payer policies are published or updated.

Billing Code Overview

Service type: Durable medical/supply item for injection/aspiration procedures

Typical site of service: Outpatient clinics, physician offices, ambulatory surgical centers, infusion centers, and home health settings

Data not available in the input.

Clinical & Coding Specifications

Clinical Context

A 68-year-old patient with insulin-dependent diabetes mellitus presents to an outpatient endocrinology clinic for routine insulin administration training and supplies. The clinician provides a single-use sterile syringe with attached needle, volume 5 cc or greater, to draw and administer a large-volume subcutaneous medication or to aspirate fluid for bedside procedures. Typical workflow: clinician verifies order, confirms patient identity and indication, prepares a sterile field, selects A4209 syringe with needle (5 cc or greater), performs hand hygiene and appropriate injection or aspiration technique, disposes of the syringe in a sharps container, documents the supply dispensing or use in the medical record including lot number and quantity, and bills the supply using HCPCS Level II code A4209 alongside any clinical service codes for the encounter.

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier	Not typically used; placeholder for systems requiring a second modifier field when no modifier applies
`22`	Increased procedural services	When the clinical service associated with syringe use requires substantially greater work or complexity
`23`	Unusual anesthesia	When local or regional anesthesia is provided in an unusual manner related to the procedure involving the syringe
`26`	Professional component	When billing separates professional interpretation or services related to a procedure that used the syringe
`52`	Reduced services	When the procedure involving syringe use is partially reduced or not completed as planned
`53`	Discontinued procedure	When a planned procedure involving the syringe is stopped before completion for patient safety
`62`	Two surgeons	When two surgeons are required for a procedure that used the syringe (rare for supply billing but applicable to the associated procedure)
`78`	Return to OR for related procedure following initial surgery	When a subsequent procedure related to the initial syringe-associated surgery occurs during the global period
`80`	Assistant surgeon	When an assistant surgeon participates in a procedure associated with syringe use
`82`	Assistant surgeon (when qualified resident not available)	When an assistant is needed and no qualified resident is available for the syringe-related procedure
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services by assistant at surgery	When an advanced practice clinician assists in the procedure requiring the syringe
`KX`	Requirements specified in the medical policy are met	When payer-specific documentation requirements for medical necessity of the supply are met
`NU`	New equipment	When the syringe is provided as new equipment (supply) rather than reusable

Taxonomy Code	Specialty	Notes
`207RH0000X`	Surgery - General Surgery	General surgeons commonly use large-volume sterile syringes for aspiration and irrigation
`363A00000X`	Nursing - Certified Registered Nurse Anesthetist	CRNAs may use large-volume syringes for medication delivery in procedural settings
`163W00000X`	Endocrinology	Endocrinologists and diabetes educators dispense and supervise use of syringes for insulin and injectable therapies
`207K00000X`	Surgery - Plastic Surgery	Plastic surgeons may use large syringes for tumescent anesthesia and aspiration during office procedures
`207L00000X`	Surgery - Otolaryngology	ENT surgeons use syringes for local injections and aspiration during office-based procedures

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`E11.9`	Type 2 diabetes mellitus without complications	Common indication for insulin administration and patient education involving syringes
`E10.9`	Type 1 diabetes mellitus without complications	Insulin-dependent patients require syringes for subcutaneous insulin delivery
`M25.50`	Pain in unspecified joint	Joint aspiration or injection procedures using large-volume syringes may address effusion or pain
`M17.9`	Osteoarthritis of knee, unspecified	Knee effusion aspiration or intra-articular injections commonly use 5 cc or greater syringes
`N39.0`	Urinary tract infection, site not specified	Large syringes may be used for bladder irrigation in certain outpatient settings
`R65.10`	Systemic inflammatory response syndrome (SIRS) of infectious origin without septic shock	Large-volume syringes may be used for aspiration or administration of medications in acute care settings
`J80`	Acute respiratory distress syndrome	In some critical care procedures, larger syringes are used for aspiration or instillation medications
`K80.10`	Calculus of gallbladder with acute cholecystitis without obstruction	Percutaneous aspiration or drainage procedures in interventional settings may employ large-volume syringes

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`96372`	Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); subcutaneous or intramuscular	Commonly performed when a syringe with needle is used to administer medications during an outpatient visit
`36000`	Introduction of needle or intracatheter, vein; simple venipuncture	Syringes with needles may be used for initial vascular access or aspiration in procedures preceding catheter placement
`20610`	Arthrocentesis, aspiration and/or injection, major joint or bursa (e.g., shoulder, hip, knee); without imaging guidance	Large-volume sterile syringes (`A4209`) are often used to aspirate joint effusions or inject therapeutics during arthrocentesis
`29806`	Arthroscopy, knee, surgical; synovectomy, limited	In operative workflows, large syringes can be used for irrigation or aspiration in conjunction with arthroscopic procedures
`J3301`	Injection, triamcinolone acetonide, not otherwise specified, 10 mg	While this is a drug code rather than a procedure, injectable medications billed via J-codes are frequently administered with syringes billed as `A4209` when syringe size is 5 cc or greater

Related Codes

HCPCS-A4206-STERILE-SYRINGE-1CC-NEEDLE

HCPCS Level II A4206: Sterile Syringe with Needle, 1 cc or Less

HCPCS-A4207-STERILE-2CC-SYRINGE-WITH-NEEDLE

HCPCS A4207: Syringe with Needle, Sterile 2 cc, Each

HCPCS-A4208-STERILE-3CC-SYRINGE-WITH-NEEDLE

HCPCS Level II A4208: Syringe with Needle, Sterile 3 cc, Each

HCPCS-A4210-NEEDLE-FREE-INJECTION-DEVICE

HCPCS A4210: Needle-Free Injection Device, Single

HCPCS-A4211-SUPPLIES-SELF-ADMINISTERED-INJECTIONS

HCPCS A4211: Supplies for Self-Administered Injections

HCPCS-A4212-NON-CORING-NEEDLE-STYLET-CATHETER-ACCESS-SUPPLY

HCPCS Level II A4212: Non-coring Needle or Stylet with or without Catheter

HCPCS-A4213-STERILE-SYRINGE-20CC-OR-GREATER

HCPCS Level II A4213: Sterile Syringe, 20 cc or Greater

HCPCS-A4215-STERILE-NEEDLE-SINGLE-EACH

HCPCS Level II A4215: Sterile Needle, Single Use, Each

HCPCS-A4216-STERILE-DILUENT-FLUSH-10ML

HCPCS A4216: Sterile Diluent/Flush, 10 ml

HCPCS-A4217-STERILE-WATER-SALINE-500ML

HCPCS A4217: Sterile Water/Saline, 500 ml

Showing 1–10 of 633

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

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

Trek Health ingests and normalizes Transparency in Coverage data and payer policy updates to give provider organizations a clear view of how commercial reimbursement behaves across markets, payers, and services. Our platform transforms raw payer disclosures into structured intelligence that supports contract evaluation, payer negotiations, and service line strategy. By combining market benchmarks with ongoing policy visibility, Trek helps teams identify variability, risk, and opportunity in commercial reimbursement. The result is faster insight, stronger negotiating positions, and more informed financial decisions.

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`00`	No modifier	Not typically used; placeholder for systems requiring a second modifier field when no modifier applies
`22`	Increased procedural services	When the clinical service associated with syringe use requires substantially greater work or complexity
`23`	Unusual anesthesia	When local or regional anesthesia is provided in an unusual manner related to the procedure involving the syringe
`26`	Professional component	When billing separates professional interpretation or services related to a procedure that used the syringe
`52`	Reduced services	When the procedure involving syringe use is partially reduced or not completed as planned
`53`	Discontinued procedure	When a planned procedure involving the syringe is stopped before completion for patient safety
`62`	Two surgeons	When two surgeons are required for a procedure that used the syringe (rare for supply billing but applicable to the associated procedure)
`78`	Return to OR for related procedure following initial surgery	When a subsequent procedure related to the initial syringe-associated surgery occurs during the global period
`80`	Assistant surgeon	When an assistant surgeon participates in a procedure associated with syringe use
`82`	Assistant surgeon (when qualified resident not available)	When an assistant is needed and no qualified resident is available for the syringe-related procedure
`AS`	Physician assistant, nurse practitioner, or clinical nurse specialist services by assistant at surgery	When an advanced practice clinician assists in the procedure requiring the syringe
`KX`	Requirements specified in the medical policy are met	When payer-specific documentation requirements for medical necessity of the supply are met
`NU`	New equipment	When the syringe is provided as new equipment (supply) rather than reusable

Taxonomy Code	Specialty	Notes
`207RH0000X`	Surgery - General Surgery	General surgeons commonly use large-volume sterile syringes for aspiration and irrigation
`363A00000X`	Nursing - Certified Registered Nurse Anesthetist	CRNAs may use large-volume syringes for medication delivery in procedural settings
`163W00000X`	Endocrinology	Endocrinologists and diabetes educators dispense and supervise use of syringes for insulin and injectable therapies
`207K00000X`	Surgery - Plastic Surgery	Plastic surgeons may use large syringes for tumescent anesthesia and aspiration during office procedures
`207L00000X`	Surgery - Otolaryngology	ENT surgeons use syringes for local injections and aspiration during office-based procedures

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`E11.9`	Type 2 diabetes mellitus without complications	Common indication for insulin administration and patient education involving syringes
`E10.9`	Type 1 diabetes mellitus without complications	Insulin-dependent patients require syringes for subcutaneous insulin delivery
`M25.50`	Pain in unspecified joint	Joint aspiration or injection procedures using large-volume syringes may address effusion or pain
`M17.9`	Osteoarthritis of knee, unspecified	Knee effusion aspiration or intra-articular injections commonly use 5 cc or greater syringes
`N39.0`	Urinary tract infection, site not specified	Large syringes may be used for bladder irrigation in certain outpatient settings
`R65.10`	Systemic inflammatory response syndrome (SIRS) of infectious origin without septic shock	Large-volume syringes may be used for aspiration or administration of medications in acute care settings
`J80`	Acute respiratory distress syndrome	In some critical care procedures, larger syringes are used for aspiration or instillation medications
`K80.10`	Calculus of gallbladder with acute cholecystitis without obstruction	Percutaneous aspiration or drainage procedures in interventional settings may employ large-volume syringes

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`96372`	Therapeutic, prophylactic, or diagnostic injection (specify substance or drug); subcutaneous or intramuscular	Commonly performed when a syringe with needle is used to administer medications during an outpatient visit
`36000`	Introduction of needle or intracatheter, vein; simple venipuncture	Syringes with needles may be used for initial vascular access or aspiration in procedures preceding catheter placement
`20610`	Arthrocentesis, aspiration and/or injection, major joint or bursa (e.g., shoulder, hip, knee); without imaging guidance	Large-volume sterile syringes (`A4209`) are often used to aspirate joint effusions or inject therapeutics during arthrocentesis
`29806`	Arthroscopy, knee, surgical; synovectomy, limited	In operative workflows, large syringes can be used for irrigation or aspiration in conjunction with arthroscopic procedures
`J3301`	Injection, triamcinolone acetonide, not otherwise specified, 10 mg	While this is a drug code rather than a procedure, injectable medications billed via J-codes are frequently administered with syringes billed as `A4209` when syringe size is 5 cc or greater

Related Codes

HCPCS-A4206-STERILE-SYRINGE-1CC-NEEDLE

HCPCS Level II A4206: Sterile Syringe with Needle, 1 cc or Less

HCPCS-A4207-STERILE-2CC-SYRINGE-WITH-NEEDLE

HCPCS A4207: Syringe with Needle, Sterile 2 cc, Each

HCPCS-A4208-STERILE-3CC-SYRINGE-WITH-NEEDLE

HCPCS Level II A4208: Syringe with Needle, Sterile 3 cc, Each

HCPCS-A4210-NEEDLE-FREE-INJECTION-DEVICE

HCPCS A4210: Needle-Free Injection Device, Single

HCPCS-A4211-SUPPLIES-SELF-ADMINISTERED-INJECTIONS

HCPCS A4211: Supplies for Self-Administered Injections

HCPCS-A4212-NON-CORING-NEEDLE-STYLET-CATHETER-ACCESS-SUPPLY

HCPCS Level II A4212: Non-coring Needle or Stylet with or without Catheter

HCPCS-A4213-STERILE-SYRINGE-20CC-OR-GREATER

HCPCS Level II A4213: Sterile Syringe, 20 cc or Greater

HCPCS-A4215-STERILE-NEEDLE-SINGLE-EACH

HCPCS Level II A4215: Sterile Needle, Single Use, Each

HCPCS-A4216-STERILE-DILUENT-FLUSH-10ML

HCPCS A4216: Sterile Diluent/Flush, 10 ml

HCPCS-A4217-STERILE-WATER-SALINE-500ML

HCPCS A4217: Sterile Water/Saline, 500 ml

Showing 1–10 of 633

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Jul 29, 2026.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Jul 29, 2026.

Published by

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

OpenPayer

HCPCS A4209: Syringe with Needle, Sterile 5 cc or Greater

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Billing Code Overview

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HCPCS A4209: Syringe with Needle, Sterile 5 cc or Greater

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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

HCPCS A4209: Syringe with Needle, Sterile 5 cc or Greater

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Billing Code Overview

HCPCS A4209: Syringe with Needle, Sterile 5 cc or Greater

Sign up for hcpcs A4209 policy alerts

Billing Code Overview

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

What does HCPCS code A4209 represent and where is it typically used?

How is A4209 typically billed in relation to clinical services and which CPT codes are commonly associated?

Which modifiers might be relevant when billing for services that use A4209?

What diagnoses or clinical scenarios are commonly related to use of A4209?

Which payers are covered in the A4209 guidance and does the page provide specific reimbursement rates?

References

Clinical & Coding Specifications

Clinical Context

Coding Specifications

Related Diagnoses

Related CPT Codes

Related Codes

What does HCPCS code A4209 represent and where is it typically used?

How is A4209 typically billed in relation to clinical services and which CPT codes are commonly associated?

Which modifiers might be relevant when billing for services that use A4209?

What diagnoses or clinical scenarios are commonly related to use of A4209?

Which payers are covered in the A4209 guidance and does the page provide specific reimbursement rates?

References