HCPCS A4288: Valve for Breast Pump, Replacement

HCPCS Level II code A4288 denotes a replacement valve for a breast pump, a durable medical equipment accessory used in lactation and breastfeeding support; the service is an equipment replacement/repair item and the typical site of service is home or outpatient clinic where breast pump supplies are provided or dispensed.

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HCPCS A4288: Valve for Breast Pump, Replacement

Customize your policy alerts

Sign up for hcpcs A4288 policy alerts

Get alerted when payer policies referencing A4288 are released or updated.

Monitor payer policy activity

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

Clinical & Coding Specifications

Clinical Context

A lactating patient requests a replacement valve for a personal or hospital-grade breast pump after noticing decreased suction and milk expression. Typical workflow: the patient contacts a lactation clinic, durable medical equipment supplier, or outpatient pharmacy; the clinician or lactation consultant confirms the pump model and identifies the worn or cracked valve as the cause of reduced performance; the supplier dispenses the replacement valve A4288 or orders it for shipment; documentation includes patient identifiers, pump model, part replaced (A4288), date of issue, and clinical indication such as ongoing breastfeeding support or weaning assistance. Typical site of service: outpatient clinic, lactation consultant office, DME supplier location, or patient’s home when delivered. A common patient scenario: a postpartum patient at two weeks postpartum with engorgement and low milk output due to a degraded pump valve requests a replacement part to restore effective pumping and maintain milk supply.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99401`	Preventive medicine counseling and/or risk factor reduction intervention(s) provided to an individual; approximately 15 minutes	Used for brief lactation counseling or breastfeeding education provided when issuing a replacement valve.
`99402`	Preventive medicine counseling; approximately 30 minutes	Used for more in-depth lactation consultation during which replacement parts like `A4288` are discussed and ordered.
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, low to moderate complexity	Used when a clinician documents a postpartum visit that includes evaluation of pump performance and orders the replacement valve.
`E0604`	Breast pump, electric (rental or purchase, per payer rules)	Commonly associated device; valve `A4288` is a replacement component for electric breast pumps billed under this device family.
`99070`	Supplies and materials (except spectacles), noncovered items and supplies; usually used to report items not separately coded	Used in workflows where a supplier bills for replacement parts not covered under other specific codes when payer guidance permits.

Related Modifiers

5 rows

Modifier	Description	When to Use
22	Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…	- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
52	Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…	- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
53	Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…	- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
P1	Modifier P1 indicates an ASA Physical Status I — a normal healthy patient — and is appended to anesthesia CPT codes (00100–01999) based on the anesthesiologist’s clinical assessment. It documents the…	- When to apply: Use modifier P1 on anesthesia CPT codes (00100–01999) when the anesthesia provider assigns ASA Physical Status I — a normal healthy patient (non‑smoker, minimal or no alcohol use).…
59	Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…	- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…

Related Provider Taxonomies

8 rows

Taxonomy Code	Specialty	Notes
251B00000X	Case Management Agency	An organization that is responsible for providing case management services. The agency provides services which assist an individual in gaining access…
251E00000X	Home Health Agency	A public agency or private organization, or a subdivision of such an agency or organization, that is primarily engaged in providing skilled nursing se…
367A00000X	Advanced Practice Midwife	Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproduc…
332B00000X	Durable Medical Equipment & Medical Supplies	A supplier of medical equipment such as respirators, wheelchairs, home dialysis systems, or monitoring systems, that are prescribed by a physician for…
163W00000X	Registered Nurse	(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive…
2255R0406X	Blind Rehabilitation Specialist/Technologist	Respiratory, Developmental, Rehabilitative and Restorative Service Providers · Specialist/Technologist
2278P1004X	Pulmonary Diagnostics Certified Respiratory Therapist	Included in the area of pulmonary diagnostics are the following; collection and analysis of physiological specimens, interpretation of physiological d…
207VG0400X	Gynecology Physician	A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions.

Related Codes

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

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

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

HCPCS Level II A4207: Syringe with Needle, Sterile 2 cc

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

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

HCPCS-A4209-STERILE-SYRINGE-WITH-NEEDLE-5CC-OR-GREATER

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

HCPCS-A4210-NEEDLE-FREE-INJECTION-DEVICE

HCPCS Level II A4210: Needle-free Injection Device, Each

HCPCS-A4211-SUPPLIES-SELF-ADMINISTERED-INJECTIONS

HCPCS Level II 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/without Catheter

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

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

HCPCS-A4215-STERILE-NEEDLE-SINGLE-EACH

HCPCS Level II A4215: Needle, Sterile, Any Size

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

HCPCS Level II A4216: Sterile Diluent/Flush, 10 ml

Showing 1–10 of 633

Frequently Asked Questions

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

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`99401`	Preventive medicine counseling and/or risk factor reduction intervention(s) provided to an individual; approximately 15 minutes	Used for brief lactation counseling or breastfeeding education provided when issuing a replacement valve.
`99402`	Preventive medicine counseling; approximately 30 minutes	Used for more in-depth lactation consultation during which replacement parts like `A4288` are discussed and ordered.
`99213`	Office or other outpatient visit for the evaluation and management of an established patient, low to moderate complexity	Used when a clinician documents a postpartum visit that includes evaluation of pump performance and orders the replacement valve.
`E0604`	Breast pump, electric (rental or purchase, per payer rules)	Commonly associated device; valve `A4288` is a replacement component for electric breast pumps billed under this device family.
`99070`	Supplies and materials (except spectacles), noncovered items and supplies; usually used to report items not separately coded	Used in workflows where a supplier bills for replacement parts not covered under other specific codes when payer guidance permits.

Related Modifiers

5 rows

Modifier	Description	When to Use
22	Modifier –22 (Increased Procedural Services) is used when a reported procedure is substantially more extensive than normally required. The CPT Manual and CMS state it may be appended only when the…	- When to use: Append modifier -22 to a procedural CPT code when the service performed is substantially more extensive than the usual service described by that code — i.e., the procedure required…
52	Modifier ‑52 (Reduced Services) indicates that a service or procedure was partially reduced or omitted at the provider’s discretion, allowing reporting of the basic procedure number with a qualifier…	- Use modifier -52 when a physician or qualified health professional electively reduces or omits part of a procedure or service (for example, performing fewer required views or omitting a portion of…
53	Modifier 53 (Discontinued Procedure) signals that a surgical or diagnostic service was begun by the physician but terminated because of extenuating circumstances that threatened the patient’s…	- Use modifier -53 when a physician/qualified healthcare professional has started a surgical or diagnostic procedure (e.g., anesthesia administered, incision or scope insertion) and then discontinues…
P1	Modifier P1 indicates an ASA Physical Status I — a normal healthy patient — and is appended to anesthesia CPT codes (00100–01999) based on the anesthesiologist’s clinical assessment. It documents the…	- When to apply: Use modifier P1 on anesthesia CPT codes (00100–01999) when the anesthesia provider assigns ASA Physical Status I — a normal healthy patient (non‑smoker, minimal or no alcohol use).…
59	Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…	- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…

Related Provider Taxonomies

8 rows

Taxonomy Code	Specialty	Notes
251B00000X	Case Management Agency	An organization that is responsible for providing case management services. The agency provides services which assist an individual in gaining access…
251E00000X	Home Health Agency	A public agency or private organization, or a subdivision of such an agency or organization, that is primarily engaged in providing skilled nursing se…
367A00000X	Advanced Practice Midwife	Advanced practice midwifery encompasses the independent provision of care during pregnancy, childbirth, and the postpartum period; sexual and reproduc…
332B00000X	Durable Medical Equipment & Medical Supplies	A supplier of medical equipment such as respirators, wheelchairs, home dialysis systems, or monitoring systems, that are prescribed by a physician for…
163W00000X	Registered Nurse	(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive…
2255R0406X	Blind Rehabilitation Specialist/Technologist	Respiratory, Developmental, Rehabilitative and Restorative Service Providers · Specialist/Technologist
2278P1004X	Pulmonary Diagnostics Certified Respiratory Therapist	Included in the area of pulmonary diagnostics are the following; collection and analysis of physiological specimens, interpretation of physiological d…
207VG0400X	Gynecology Physician	A physician who specializes in diagnosis, treatment, and management of patients with gynecologic conditions.

Related Codes

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

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

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

HCPCS Level II A4207: Syringe with Needle, Sterile 2 cc

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

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

HCPCS-A4209-STERILE-SYRINGE-WITH-NEEDLE-5CC-OR-GREATER

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

HCPCS-A4210-NEEDLE-FREE-INJECTION-DEVICE

HCPCS Level II A4210: Needle-free Injection Device, Each

HCPCS-A4211-SUPPLIES-SELF-ADMINISTERED-INJECTIONS

HCPCS Level II 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/without Catheter

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

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

HCPCS-A4215-STERILE-NEEDLE-SINGLE-EACH

HCPCS Level II A4215: Needle, Sterile, Any Size

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

HCPCS Level II A4216: Sterile Diluent/Flush, 10 ml

Showing 1–10 of 633

Frequently Asked Questions

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.

Published by

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

HCPCS A4288: Valve for Breast Pump, Replacement

Sign up for hcpcs A4288 policy alerts

HCPCS A4288: Valve for Breast Pump, Replacement

Sign up for hcpcs A4288 policy alerts

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related Codes

What does HCPCS code A4288 represent and when is it used?

What clinical and documentation details are typically required when providing a replacement valve (A4288)?

Which modifiers are commonly relevant when billing A4288 and when are they used?

What related CPT/HCPCS codes might appear on a claim with A4288?

Which diagnosis codes are commonly documented alongside A4288 to support medical necessity?

References

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related Codes

What does HCPCS code A4288 represent and when is it used?

What clinical and documentation details are typically required when providing a replacement valve (A4288)?

Which modifiers are commonly relevant when billing A4288 and when are they used?

What related CPT/HCPCS codes might appear on a claim with A4288?

Which diagnosis codes are commonly documented alongside A4288 to support medical necessity?

References