Summary & Overview
CPT 25909: Forearm Amputation Stump Revision (Radius and Ulna)
CPT code 25909 denotes surgical revision of an existing forearm amputation stump involving removal of additional length from the radius and ulna when the stump is nonhealing or unsuitable for prosthetic fitting. This procedure is clinically important for restoring limb health, resolving complications such as infection or nonunion, and enabling functional prosthesis use. Nationally, stump revision procedures affect surgical outcomes, prosthetic rehabilitation pathways, and post-amputation quality of life.
Key payers covered in this analysis include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. The publication summarizes how CPT code 25909 is used in clinical practice, the typical sites of service where it occurs, and the clinical scenarios that prompt its use.
Readers will learn practical benchmarks and context for billing and clinical coding, including service definitions and common clinical indications. The report also outlines policy considerations relevant to coverage and utilization for stump revision surgery and offers clinical context to aid coding accuracy. Data not available in the input is noted where applicable.
Billing Code Overview
CPT code 25909 describes a surgical procedure to remove additional length from an already amputated radius and ulna when the stump is nonhealing or not suitable in its current form to fit a prosthesis. This procedure involves further osseous revision of the forearm amputation site to address issues such as persistent nonunion, infection, soft-tissue problems, or to improve prosthetic fitting.
-
Service type: Surgical revision of forearm amputation (osseous stump revision)
-
Typical site of service: Hospital inpatient or outpatient operating room, ambulatory surgery center, or specialized surgical facility depending on clinical status and complexity
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult with a previously performed transradial and transulnar (radius and ulna) amputation who presents with a nonhealing or painful distal stump, bone prominence, or stump configuration that prevents proper prosthetic fitting. The patient may report persistent wound drainage, recurrent soft tissue infection, pressure-related skin breakdown, or chronic pain localized to the bony end. Imaging (plain radiographs, occasionally CT) demonstrates sharp bone edges, excessive length of the residual radius or ulna, or osteomyelitic changes limited to the distal stump. The clinical workflow includes preoperative assessment (history, physical exam, vascular and neurologic assessment of the limb), informed consent, optimization of comorbidities (e.g., diabetes, peripheral vascular disease), and perioperative planning with the prosthetics team. In the operating room under regional or general anesthesia, the surgeon performs additional bone resection and stump revision to achieve a well-padded, conical, tension-free soft tissue envelope suitable for prosthetic fitting and wound healing. Postoperative care includes wound monitoring, dressing changes, pain control, possible short hospitalization for observation, and coordination with physical therapy and prosthetics for staged prosthetic fitting once healed.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
52 | Reduced Services | Use when the stump revision is partially reduced from the typical service (e.g., limited bone resection or scope reduced). |