Clinical Context
A 56-year-old female breast cancer survivor presents to an outpatient vascular/lymphatic clinic for baseline and surveillance evaluation for lymphedema following axillary lymph node dissection and radiation therapy performed 3 months prior. The provider obtains a focused history of limb heaviness, tightness, prior infections, and recent weight change. The patient is asked to remove clothing from the limb(s) to be evaluated and positioned supine or seated. Skin integrity and wounds are inspected. Electrodes or electrode pads are applied to standardized locations on the upper or lower extremities. The provider or trained technologist performs bioimpedance spectroscopy using the 93702 procedure to measure tissue resistance and estimate extracellular fluid volume. Results are compared to baseline or contralateral limb values to detect early extracellular fluid accumulation consistent with lymphedema. Findings are documented in the medical record with relevant measurements, interpretation, and plan for surveillance, compression, referral to lymphedema therapy, or other interventions as appropriate.
Coding Specifications
| Modifier | Description | When to Use |
|---|
26 | Professional component | Use when billing only the physician interpretation of the test separate from technical component. |
| 52 | Reduced services | Use when the procedure is partially reduced or not completed as originally intended.
| 53 | Discontinued procedure | Use when the procedure is started but aborted due to extenuating circumstances.
| 59 | Distinct procedural service | Data not available in the input. |
| 76 | Repeat procedure by same physician | Data not available in the input. |
| RT | Right side | Use when the procedure is performed on the right limb and laterality reporting is required.
| LT | Left side | Data not available in the input. |
| TC | Technical component | Use when billing only the equipment/technologist portion of the test separate from the professional interpretation.
| 22 | Increased procedural services | Use when work required is substantially greater than typical for 93702 and documentation supports the increased complexity.
| 51 | Multiple procedures | Use when 93702 is billed in the same session with other procedures and payer rules require a multiple-procedure modifier.
| Taxonomy Code | Specialty | Notes |
|---|
253E00000X | Vascular Medicine | Common specialty ordering and interpreting bioimpedance for lymphedema surveillance. |
| 207RG0300X | Physical Medicine & Rehabilitation | Lymphedema therapists and PM&R physicians managing edema and rehabilitation.
| 2085P0200X | Radiation Oncology | Follow-up of patients who received regional radiation and are at risk for lymphedema.
| 207L00000X | Physical Therapy | Clinical providers who perform assessments and coordinate measurements in outpatient clinics.
| 207K00000X | Occupational Therapy | Providers who evaluate limb function and participate in lymphedema management.
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|
I89.0 | Lymphedema, not elsewhere classified | Primary diagnosis indicating lymphedema assessment using 93702. |
| C50.919 | Malignant neoplasm of unspecified site of unspecified breast | Breast cancer survivors after axillary surgery/radiation are at increased risk for lymphedema; surveillance with 93702 is common.
| Z85.3 | Personal history of malignant neoplasm of breast | History code used during follow-up surveillance including lymphedema screening.
| R22.42 | Localized swelling, mass and lump, left lower limb | Symptom code prompting bioimpedance assessment with 93702.
| T81.89XA | Other complications of procedures, initial encounter | Used when postoperative complications include limb swelling requiring measurement.
| I83.90 | Varicose veins of unspecified lower extremity with other complications, unspecified | Differential diagnosis for limb swelling where 93702 may help distinguish lymphedema from other causes.
| E11.9 | Type 2 diabetes mellitus without complications | Chronic conditions like diabetes can contribute to edema; 93702 may be used in evaluation when clinical concern exists.
| N18.9 | Chronic kidney disease, unspecified | Systemic causes of fluid overload are considered in the differential when interpreting 93702 results.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
97001 | Physical therapy evaluation — CPT description varies by payer | Performed before or after 93702 for functional assessment and therapy planning. |
| 97140 | Manual therapy techniques (e.g., mobilization/manipulation) | Often performed by therapists in conjunction with lymphedema management following abnormal 93702 findings.
| 97110 | Therapeutic exercises | Used in rehabilitation plans when 93702 detects changes in extracellular fluid and function.
| 97124 | Massage therapy, including manual lymphatic drainage | Directly related procedural therapy when bioimpedance monitoring with 93702 identifies early lymphedema.
| 36415 | Collection of venous blood by venipuncture | May be performed in the same visit for laboratory testing if infection or other causes of swelling are suspected.