Clinical Context
A 68-year-old ambulatory patient with symptomatic medial compartment knee osteoarthritis presents to an orthopedic clinic complaining of activity-related knee pain and intermittent instability. Conservative measures including NSAIDs, physical therapy, and activity modification provided limited relief. The orthopedist assesses alignment, range of motion, and ligamentous stability, determines the patient is not an immediate surgical candidate, and prescribes a prefabricated single‑upright knee orthosis with an adjustable flexion/extension joint for medial‑lateral and rotational control (K0901). The durable medical equipment (DME) supplier verifies measurements, performs a fitting in the clinic or outpatient DME clinic, educates the patient on donning/doffing, joint adjustment, skin inspection, and a progressive wear schedule. Follow‑up occurs within 2–6 weeks to reassess fit, comfort, and symptom response, and again as clinically indicated for adjustments or replacement. Typical sites of service include outpatient orthopedic clinics, hospital outpatient departments, ambulatory surgery centers for fittings adjacent to procedures, and durable medical equipment supplier clinics.
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
99213 | Office or other outpatient visit for the evaluation and management of an established patient, typically 15 minutes | Used for the outpatient follow-up visit to evaluate orthosis effectiveness, fit, and need for adjustment. |
97001 | Physical therapy evaluation | Used when a physical therapist performs an initial functional and gait assessment to determine orthosis needs.
97530 | Therapeutic activities, direct (one-on-one) | May be used for supervised gait training and functional activities during orthosis fitting and rehabilitation.
99070 | Supplies and materials provided by physician over and above those usually included with the office visit | Use for minor orthotic accessories supplied by the clinic at fitting when payer allows billing.
A9270 | Non-covered item or service (miscellaneous DME supply) — HCPCS Level II example shown as CPT-adjacent supply code | Used by some payers for miscellaneous orthotic supplies not separately coded when required by supplier billing workflows.