S72.001A

Fracture of unspecified part of neck of right femur, initial encounter for closed fracture

S72.001A is a clinical classification for a fracture occurring in the neck of the right femur, where the precise anatomical sub-location (such as subcapital, transcervical, or basicervical) is not specified. The 'A' extension identifies this as the initial encounter for a closed fracture, meaning the patient is currently receiving active treatment, which may include emergency surgical stabilization, traction, or internal fixation. This condition is a major orthopedic emergency, particularly in geriatric populations where it is frequently associated with osteoporosis, but it also occurs in younger patients following high-energy impact. The neck of the femur is an intracapsular region, and fractures here carry a significant risk of disrupting the blood supply to the femoral head, potentially leading to avascular necrosis. Immediate clinical management is essential to reduce the risk of secondary complications like deep vein thrombosis, pneumonia, and permanent mobility loss.

Clinical Symptoms

  • Acute, severe pain in the right hip or groin area
  • Total inability to bear weight on the right lower extremity
  • Shortening of the right leg due to muscular contraction pulling the distal fragment
  • Noticeable external rotation of the right foot and leg
  • Visible swelling and ecchymosis (bruising) over the lateral hip
  • Pain that worsens with any passive or active movement of the joint
  • Tenderness upon palpation of the greater trochanteric region

Common Causes

  • Falls from standing height in individuals with reduced bone mineral density
  • High-energy mechanical trauma such as motor vehicle accidents or falls from heights
  • Primary or secondary osteoporosis causing bone fragility
  • Repetitive stress or overuse in high-impact athletes (stress fractures)
  • Pathological bone weakening from metastatic cancer or Paget's disease
  • Nutritional deficiencies specifically in Calcium and Vitamin D
  • Long-term use of medications that affect bone metabolism, such as glucocorticoids

Documentation & Coding Tips

Document specific anatomical location within the femoral neck to avoid unspecified coding.

Example: Patient presents with a displaced transcervical fracture of the right femoral neck following a fall. Radiographic evidence confirms the specific site at the mid-neck. Patient history include Type 2 Diabetes Mellitus with neuropathy and Senile Osteoporosis (M81.0), which are currently being managed to mitigate risk of non-union. This is the initial encounter for this closed injury.

Billing Focus: Laterality (right), fracture site specificity (transcervical vs unspecified), and encounter type (initial for closed fracture).

Distinguish between displaced and nondisplaced fractures to ensure correct code selection.

Example: Orthopedic evaluation of the right hip reveals a nondisplaced subcapital fracture of the femoral neck. Plan includes percutaneous pinning. The fracture is closed with no neurovascular deficit. Patient has secondary hyperparathyroidism which may impact bone mineral density and healing timeline. This is the initial encounter for management.

Billing Focus: Documentation of displaced vs nondisplaced status and laterality.

Record the mechanism of injury and external cause codes to provide context for the encounter.

Example: Acute closed fracture of the right femoral neck occurred when the patient tripped over a rug at home (W18.09XA, fall on same level). The patient is an 82-year-old female with a history of recurrent falls and Vitamin D deficiency. Fracture is currently closed and neurologically intact.

Billing Focus: Requires external cause codes (W-series) to support injury circumstances and insurance liability determination.

Identify the encounter phase as initial, subsequent, or sequela.

Example: Initial encounter for a closed fracture of the right femoral neck. Patient is being admitted for hemiarthroplasty. Co-morbidities include Essential Hypertension and Atrial Fibrillation on anticoagulation, requiring preoperative stabilization. The fracture is documented as unspecified part of the neck pending intraoperative confirmation.

Billing Focus: Selection of the 7th character A (initial), D (subsequent), or S (sequela).

Document if the fracture is pathologic or traumatic.

Example: Patient with known metastatic breast cancer to the bone presents with a right femoral neck fracture after minor torque while walking. This is an initial encounter for a pathologic fracture (M84.451A) rather than a traumatic fracture (S72.001A). Note: If trauma was the primary cause despite osteoporosis, S72 series remains primary.

Billing Focus: Differentiation between S72 (traumatic) and M84 (pathologic) codes.

Relevant CPT Codes