Ultrasound CPT Codes: A Complete Guide for Providers (2025)

Physical therapy professionals are increasingly turning to diagnostic ultrasound as a vital tool for enhancing patient care. But along with clinical implementation comes a critical need to understand billing and documentation. One of the most important aspects of this process is learning how to accurately utilize ultrasound CPT codes.

Whether you’re incorporating musculoskeletal ultrasound, vascular screening, or abdominal assessments into your practice, this guide is designed to help you navigate the complex world of ultrasound CPT coding, understand insurance requirements, and streamline your workflow using technology.

What Are Ultrasound CPT Codes?

CPT (Current Procedural Terminology) codes are used to describe medical, surgical, and diagnostic services. These codes allow for standardized communication between providers, payers, and billing systems.

Ultrasound CPT codes span from 76506 to 76999 and are categorized based on anatomical region and purpose. They help ensure that you’re accurately reimbursed for the diagnostic services you provide.

Ultrasound in physical therapy is often used for:

• Diagnosing soft tissue injuries
• Guiding injections or dry needling
• Evaluating nerve entrapments
• Monitoring rehabilitation progress

Key Categories of Ultrasound CPT Codes

Here is a breakdown of the most relevant categories of ultrasound CPT codes in physical therapy and musculoskeletal applications:

1. Head and Neck Ultrasound

Includes soft tissue structures and thyroid assessment.

• CPT Code for Thyroid Ultrasound: 76536 – Ultrasound of soft tissues of the head and neck.

2. Chest and Breast Ultrasound

• Breast Ultrasound CPT Code: 76641 – Complete breast ultrasound
• CPT Code for Breast Ultrasound (Limited): 76642 – Limited or follow-up breast ultrasound

3. Abdominal Ultrasound

• Abdomen Ultrasound CPT Code: 76700 – Complete abdominal ultrasound
• 76705 – Limited abdominal ultrasound
• Renal Ultrasound CPT Code: 76770 – Complete retroperitoneal ultrasound including kidneys

4. Pelvic and OB/GYN Ultrasound

Often used for evaluating the pelvic region in sports medicine or pelvic health practices.

5. Extremities and Musculoskeletal Ultrasound

• 76881: Complete joint ultrasound (includes anatomy and pathology)
• 76882: Limited joint ultrasound
• 76883: Nerve assessment using ultrasound

6. Vascular Ultrasound

• Carotid Ultrasound CPT Code: 93880 – Duplex scan of extracranial arteries, complete
• 93882: Limited or follow-up study of carotid arteries

7. Ultrasound Guidance Procedures

Used for procedures like needle placement, aspirations, or guided injections.

• 76942: Guidance for needle placement (e.g., injections, aspirations)

8. Advanced Techniques

• 76981-76983: Elastography (measuring tissue stiffness)
• 76978-76979: Contrast-enhanced ultrasound

Full Table of Ultrasound CPT Codes and Descriptions

Why Accurate Ultrasound Coding Matters in Physical Therapy

Incorrect coding can lead to claim denials, compliance issues, and under-reimbursement. Given how ultrasound is growing in musculoskeletal practices, it’s critical to use the appropriate CPT code based on the anatomic site, completeness of the study, and whether guidance was provided.

Here are a few real-world physical therapy applications:

• Abdomen ultrasound CPT code (76700/76705): Used for assessing organ function in post-surgical rehab.
• Breast ultrasound CPT code (76641/76642): Can assist with lymphatic drainage therapy in post-mastectomy patients.
• Renal ultrasound CPT code (76770): Used to monitor pelvic floor therapy effectiveness.
• CPT code for thyroid ultrasound (76536): Relevant for assessing related head/neck postural syndromes.
• Carotid ultrasound CPT code (93880): Utilized in neuro-rehab assessments of blood flow.

How to Use and Document Ultrasound CPT Codes Effectively

1. Know the difference between complete vs. limited: Complete studies must assess all major structures in a region.
2. Include detailed clinical notes: Document medical necessity, findings, and physician interpretation.
3. Use modifier codes where applicable: Such as when the same code is billed for bilateral procedures.
4. Stay updated: CPT codes and reimbursement rates may change annually.

How PtEverywhere Streamlines Ultrasound CPT Code Management

PtEverywhere is a physical therapy software solution that simplifies ultrasound documentation and billing with built-in support for CPT code workflows.

With PtEverywhere, practice owners can focus on patient care while reducing billing errors and administrative burden.

Mastering Ultrasound CPT Codes for Better PT Practice

Understanding and correctly applying ultrasound CPT codes is more than a billing task - it’s a reflection of clinical precision and professionalism. Whether you’re using musculoskeletal imaging to enhance diagnostics or guiding therapeutic injections, the right code ensures proper reimbursement and supports medical necessity.

By adopting best practices and using tools like PtEverywhere, physical therapy practices can navigate this complexity with ease, streamline operations, and improve patient outcomes. Don’t let billing bottlenecks hold your clinic back - make ultrasound a strength, not a challenge.

Ready to streamline your documentation and coding? Schedule a demo with PtEverywhere today.