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    v1.0.28
    OpenPayerBilling CodesMedical And Surgical SuppliesHCPCS hcpcs-a4606-oxygen-probe-oximeter-replacement
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    HCPCS Level II A4606: Oxygen Probe for Oximeter, Replacement

    HCPCS Level II code A4606 describes an oxygen probe for use with an oximeter device, replacement; this item is a durable medical equipment accessory used to monitor patient oxygen saturation and pulse rate. Service type: replacement oxygen probe (accessory). Typical site of service: inpatient, outpatient, home health, or other settings where oximetry monitoring is performed, with the probe supplied as a replacement part for an existing oximeter device. Data not available in the input.

    For related coverage guidance, see recent payer policy updates: Salivary Hormone Testing, Parathyroid Hormone, Phosphorus, Calcium, and Magnesium Testing, Bone Turnover Markers Testing.

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    Table of contents

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    Clinical & Coding Specifications

    Clinical Context

    A patient with a prescription for home pulse oximetry presents to a durable medical equipment (DME) supplier to obtain replacement components for their pulse oximeter. The supplier confirms the existing oximeter is functional but the reusable oxygen probe (sensor) has worn tubing and intermittent signal loss. The DME clinician documents patient identity, device make/model, reason for replacement (wear/contamination/damage), and that a replacement oxygen probe is medically necessary to ensure accurate SpO2 monitoring at home. The supplier dispenses the replacement oxygen probe A4606, records the device serial number, and provides patient education on proper probe attachment, cleaning, and storage. The typical workflow includes verification of the original device prescription, confirmation of medical necessity (e.g., chronic hypoxemia, recent hospital discharge requiring home monitoring), capturing supplier invoice and manufacturer part number, and submission of the HCPCS Level II code A4606 to the payer with appropriate modifier(s) if applicable. Typical site of service is a durable medical equipment supplier or the patient’s home when delivered by the supplier.

    Related CPT Codes

    CPT CodeDescriptionRelationship to This Procedure
    94640Pressurized or nonpressurized inhalation treatment for acute airway obstruction or for sputum induction for diagnostic purposes (e.g., nebulizer therapy)May be performed in conjunction with oxygen therapy management; respiratory therapists providing device education may also document therapeutic treatments in the same visit.
    94760Noninvasive ear or pulse oximetry for oxygen saturation (single determination)Diagnostic code for a point-in-time SpO2 measurement often used before or after replacement of an oxygen probe to verify device function.
    99070Supplies and materials (except spectacles), provided by the physician over and above those usually included with the office visitMay be used by suppliers or clinicians to bill for small replacement items or supplies when payer allows; check payer policy for use with A4606.
    99000Handling and/or conveyance of specimen for transfer from the patient to a third-party laboratory (historical)Rarely applicable; included for completeness when facility billing routines require a supply-handling code in the encounter.
    98960Education and training for patient self-management for a single chronic condition; individual, face-to-face, 30 minutesPatient education on probe use and SpO2 monitoring may be billed using patient education codes if payer rules permit separate billing.

    Related Modifiers

    6 rows

    ModifierDescriptionWhen to Use
    52Modifier ‑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…
    53Modifier 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…
    55Modifier –55 indicates the billing provider furnished only postoperative management for a procedure that has a global surgical period. According to AAPC, this modifier is appended to the same CPT…- Use modifier -55 when billing the same CPT surgical code that has a 10- or 90-day global period and you, as a provider other than the original surgeon, furnished ONLY postoperative management (no…
    62Modifier 62 indicates that two surgeons function as co‑surgeons, each performing distinct parts of the same primary surgical procedure. It is appended to the primary procedure code (and any…- Use modifier -62 when two surgeons act as co‑surgeons (both primary surgeons) on a single definitive primary procedure, each performing distinct parts of the same surgical procedure (append -62 to…
    80CPT® Modifier 80 (Assistant Surgeon) is appended to a surgical CPT code when a physician (MD or DO) provides full, continuous assistance throughout the operative procedure. It is intended only for…- Use CPT Modifier -80 when a physician (MD or DO) serves as an assistant surgeon and provides full, continuous assistance throughout the entire operative procedure; append -80 to the surgical CPT…
    82Modifier 82 is appended to a surgical CPT code to indicate that an attending physician acted as an assistant because a qualified resident surgeon was unavailable. In teaching hospitals it documents…- When to use: Append modifier 82 in teaching-hospital settings to indicate a physician served as an assistant surgeon because a qualified resident surgeon was unavailable (includes situations where…

    Related Provider Taxonomies

    8 rows

    Taxonomy CodeSpecialtyNotes
    332B00000XDurable Medical Equipment & Medical SuppliesA supplier of medical equipment such as respirators, wheelchairs, home dialysis systems, or monitoring systems, that are prescribed by a physician for…
    363LA2200XAdult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers · Nurse Practitioner
    207RR0500XRheumatology PhysicianAn internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, comm…
    207T00000XNeurological Surgery PhysicianA neurological surgeon provides the operative and non-operative management (i.e., prevention, diagnosis, evaluation, treatment, critical care, and reh…
    261QP3300XPain Clinic/CenterAmbulatory Health Care Facilities · Clinic/Center
    2278H0200XHome Health Certified Respiratory TherapistHome care fosters individual responsibility for self-management of chronic respiratory conditions. It includes individualized assessment based plans …
    364SR0400XRehabilitation Clinical Nurse SpecialistPhysician Assistants & Advanced Practice Nursing Providers · Clinical Nurse Specialist
    207UN0902XNuclear Imaging & Therapy PhysicianA nuclear medicine physician who specializes in nuclear imaging and therapy.

    Related ICD-10-CM Codes

    26 rows

    ICD-10-CM CodeDescription
    E11.9Type 2 diabetes mellitus without complications
    E78.5Hyperlipidemia, unspecified
    G47.30Sleep apnea, unspecified
    G47.33Obstructive sleep apnea (adult) (pediatric)
    I50.20Unspecified systolic (congestive) heart failure
    I50.33Acute on chronic diastolic (congestive) heart failure
    I50.9Heart failure, unspecified
    J12.89Other viral pneumonia
    J18.0Bronchopneumonia, unspecified organism
    J18.1Lobar pneumonia, unspecified organism

    Showing 1–10 of 26

    Related Payer Policy Updates

    Specialty: Endocrinology1 / 3

    10 rows

    PolicyPayerEffective Date
    Salivary Hormone TestingOscar Health2026-10-01
    Parathyroid Hormone, Phosphorus, Calcium, and Magnesium TestingOscar Health2026-10-01
    Bone Turnover Markers TestingOscar Health2026-10-01
    Testosterone — Coverage Criteria for Measurement and MonitoringOscar Health2026-10-01
    Diabetes Mellitus Testing — Coverage CriteriaOscar Health2026-10-01
    Thyroid Disease TestingOscar Health2026-10-01
    Thyroid Disease Testingblue cross blue shield - louisiana2026-09-15
    Thyroid Disease TestingBlue Cross Blue Shield - New Mexico2026-09-04
    Parathyroid Hormone, Phosphorous, Calcium and Magnesium TestingBlue Cross Blue Shield - New Mexico2026-09-04
    Testosterone laboratory testing and managementPremera Bluecross2026-09-04

    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

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    Frequently Asked Questions

    References

    1. 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. 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. 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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