Overview of CPT Code 10003: Fine Needle Aspiration Biopsy
Fine Needle Aspiration Biopsy (FNAB) is a minimally invasive procedure used to obtain tissue samples from lumps or masses in various organs, primarily for diagnostic purposes.
When CPT Code 10003 is Used?
FNAB is indicated in several clinical scenarios, including:
- Evaluation of thyroid nodules to rule out malignancy.
- Assessment of breast lumps or masses.
- Sampling of lymph nodes in cases of suspected lymphoma or metastasis.
- Investigation of lung nodules or masses.
- Diagnosis of salivary gland lesions.
Symptoms Indicating This Procedure
Patients may report various symptoms that lead to the need for FNAB, including:
- Palpable lumps or masses in the neck, breast, or other areas.
- Unexplained swelling or enlargement of lymph nodes.
- Persistent cough or respiratory symptoms associated with lung masses.
- Changes in voice or swallowing difficulties due to throat or neck masses.
Causes and Risk Factors
Several factors may contribute to the development of conditions requiring FNAB.
- Family history of cancer, particularly thyroid or breast cancer.
- Previous radiation exposure to the head or neck.
- Age, with older individuals at higher risk for malignancies.
- Certain genetic syndromes that predispose to tumors.
Diagnostic Tests Before Procedure
Prior to FNAB, several diagnostic tests may be performed to guide the procedure.
- Ultrasound imaging to locate the mass and assess its characteristics.
- CT or MRI scans for deeper tissue evaluation.
- Blood tests to check thyroid function or tumor markers.
Procedure Description
The FNAB procedure typically follows these steps:
- Patient is positioned comfortably, and the area of interest is identified using ultrasound.
- Skin is cleaned with antiseptic solution to minimize infection risk.
- A thin, hollow needle is inserted into the mass to extract tissue samples.
- Multiple passes may be made to obtain sufficient material for analysis.
- The needle is removed, and pressure is applied to the site to control bleeding.
Preparation for the Procedure
Patients should follow these guidelines before undergoing FNAB:
- Inform the physician about any medications, allergies, or medical conditions.
- Avoid blood thinners or anticoagulants as advised by the doctor.
- Wear comfortable clothing and arrange for transportation if sedation is used.
Recovery and Aftercare
Post-procedure care is essential for optimal recovery.
- Rest for the remainder of the day after the procedure.
- Apply ice to the biopsy site to reduce swelling and discomfort.
- Monitor for signs of infection, such as increased redness or discharge.
- Follow up with the healthcare provider for results and further management.
Possible Complications
While FNAB is generally safe, some complications may occur.
- Bleeding at the biopsy site.
- Infection at the site of needle insertion.
- Damage to surrounding tissues or organs.
- Anxiety or discomfort during the procedure.


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Learn morePost-Procedure Follow-Up
Follow-up care is crucial for monitoring and reassessment.
- Schedule a follow-up appointment within a week to discuss biopsy results.
- Additional imaging or procedures may be required based on findings.
- Regular monitoring of any existing masses or symptoms.
Alternative Treatments
In some cases, alternative management options may be considered.
- Watchful waiting for benign lesions without symptoms.
- Medications to manage symptoms or hormonal imbalances.
- Surgical excision for larger or suspicious masses.
Home Care Tips
Patients can follow these tips for effective home care post-FNAB:
- Keep the biopsy site clean and dry.
- Avoid strenuous activities for a few days.
- Take over-the-counter pain relievers as needed for discomfort.
Patient Education & Prevention
Educating patients can help in prevention and early detection.
- Regular self-examinations for lumps or changes in the body.
- Routine check-ups with healthcare providers for high-risk individuals.
- Awareness of family history and genetic counseling if necessary.
Billing and Coding Information
CPT Code: 10003
Category: Surgical Procedures
Common Modifiers:
- 50 - Bilateral procedure
- RT - Right side
- LT - Left side
Average Cost and Insurance Coverage
The cost of FNAB can vary based on several factors.
- Average cost ranges from $300 to $1,000 depending on location and facility.
- Most insurance plans cover FNAB when medically necessary.
- Patients should verify coverage with their insurance provider.
Related CPT Codes
References and Sources