Summary & Overview
HCPCS Q9953: Iron-Based MRI Contrast Injection, Per mL
HCPCS Level II code Q9953 identifies an iron-based magnetic resonance contrast agent billed per milliliter for use in MRI procedures. This code matters nationally as MRI contrast agents are integral to diagnostic imaging workflows, affecting imaging accuracy, care pathways, and payer coverage decisions. Accurate coding for contrast agents influences billing clarity, utilization tracking, and reimbursement for facilities that perform MRI studies.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The summary outlines payer coverage considerations and common modifiers that may appear on claims, while noting that some input fields are not available. Readers will learn the clinical context for using iron-based MRI contrast, typical sites of service, and what to expect in payer interactions. The publication also provides benchmarking and policy context where available, including national reimbursement patterns and programmatic notes relevant to imaging providers and billing staff.
This resource is intended for a national audience and focuses on the code definition, clinical application, and the payer landscape relevant to facilities and practitioners that administer MRI contrast agents.
Billing Code Overview
HCPCS Level II code Q9953 describes an injection, iron-based magnetic resonance contrast agent, per ml. This code represents the billed unit for administering an iron-based contrast agent used to enhance magnetic resonance imaging (MRI) studies.
Service type: Diagnostic radiology contrast administration
Typical site of service: Outpatient imaging centers, hospital radiology departments, and ambulatory care settings where MRI scans are performed
Clinical & Coding Specifications
Clinical Context
A typical patient is a middle-aged adult referred for an abdominal or pelvic magnetic resonance imaging (MRI) exam to evaluate liver lesions, focal nodular hyperplasia, or characterization of a suspected tumor identified on ultrasound or CT. The radiology team prepares the patient in an outpatient imaging center or hospital radiology department. The injection of the iron-based magnetic resonance contrast agent (Q9953) is performed by a credentialed provider (radiologist, interventional radiologist, or qualified advanced practice provider) or an authorized registered nurse under established protocols. Prior to injection, the patient undergoes screening for contraindications (iron allergy, severe renal impairment if relevant to agent labeling), informed consent, and IV access placement. The contrast dose is calculated based on the agent concentration and the planned imaging sequences. The barcode or vial volume is documented; billing reports use per-milliliter units for Q9953. The MRI sequences are acquired immediately after contrast administration per institutional protocol for lesion enhancement characterization. Post-procedure monitoring is brief, focused on allergic reaction surveillance and IV site status. The typical site of service is an outpatient imaging center or hospital outpatient radiology department.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
JW | Drug/biological amount discarded/not administered | Use when partial vial or unused drug is discarded and documentation supports wastage billing where permitted. |
QK | Service furnished under qualifying circumstances; CP licensed clinician in state | Use when the drug is administered by a certified registered nurse anesthetist or similar qualifying clinician if payer-specific rules require. |
QX | Service furnished under a physician's supervision by another qualified health professional | Use when a non-physician practitioner performs the injection under physician supervision and payers require this modifier. |
QY | Service furnished by a resident without a teaching physician present | Use when a resident administers the agent without direct attending physician involvement, per payer policy. |
TC | Technical component | Use when billing only the technical component of the service (often used by the facility for MRI technical services; contrast agent supply billed separately as Q9953). |
26 | Professional component | Use when reporting only the physician’s professional component related to image interpretation or supervision. |
52 | Reduced services | Use when fewer services than usual were provided (e.g., partial study where contrast was administered but limited sequences obtained). |
53 | Discontinued procedure | Use when the procedure was started (IV placed or contrast prepared) but discontinued due to patient reaction or other immediate issue. |
59 Not listed in raw data — excluded by instruction | Data not included per input constraints. | Data not included per input constraints. |
JW Duplicate — excluded | Duplicate modifier removed to meet relevancy. | Duplicate entry removed. |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
2085R0202X | Diagnostic Radiology | Radiologists interpret MRI with contrast and supervise administration. |
207P00000X | Emergency Medicine | Emergency physicians may administer contrast during urgent imaging for acute abdominal or pelvic processes. |
363LA2200X | Registered Nurse | RNs commonly establish IV access and administer contrast under protocol. |
207K00000X | Anesthesiology | Anesthesiologists or CRNAs may be involved when sedation or airway management is required during MRI. |
364S00000X | Physician Assistant | PAs in radiology or surgery may assist with contrast administration and patient preparation. |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
| Data not available in the input. | Data not available in the input. | Data not available in the input. |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
71260 | CT thorax, without contrast (note: CT example) | Not directly related to MRI contrast injection; included only when cross-modality correlation occurs — Data not provided in input. |
74181 | MRI abdomen without contrast (Magnetic resonance imaging) | Often performed prior to or without contrast; MRI abdomen protocols may be extended with contrast agent Q9953 to characterize lesions. |
74183 | MRI abdomen with and without contrast | Commonly paired with iron-based contrast administration for lesion characterization; contrast injection occurs between non-contrast and post-contrast sequences. |
74185 | MRI abdomen with contrast only | Used when contrast-enhanced sequences are the primary focus; Q9953 is the billed contrast agent used per milliliter. |
0159T | Image-guided MRI injection procedures (contrast) | Used for specialized MRI-guided injections or when image-guided intralesional contrast administration is performed alongside standard IV administration. |