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

Specify the anatomical location within the femoral neck whenever possible to avoid unspecified codes which may delay reimbursement.

Example: Patient presents with severe right hip pain after a mechanical fall. Radiographic imaging confirms a displaced transcervical fracture of the right femoral neck. Documentation includes the specific location (transcervical), laterality (right), and the fact that this is an initial encounter for a closed fracture. This specificity supports ICD-10 coding beyond the unspecified level and ensures proper HCC categorization for hip fractures.

Billing Focus: Anatomical specificity and laterality (Right femur neck).

Document the encounter type clearly using the appropriate 7th character suffix.

Example: Initial encounter for a closed right femoral neck fracture. The patient is being admitted for ORIF (Open Reduction Internal Fixation). The documentation clearly states this is the first visit for active treatment of the fracture, supporting the A suffix. Patient has a history of type 2 diabetes and hypertension, which are documented as complicating factors for surgical clearance.

Billing Focus: 7th character A (Initial encounter for closed fracture).

Always document the mechanism of injury to support secondary external cause codes.

Example: Patient tripped over a rug at home, landing on her right side. Documentation includes the mechanism (trip and fall), the location (private residence), and the intent (accidental). This clinical note supports W18.09XA (Other fall on same level due to slipping, tripping and stumbling, initial encounter).

Billing Focus: Secondary codes for mechanism and place of occurrence.

Include all co-occurring chronic conditions such as osteoporosis or malnutrition that may affect bone healing.

Example: 85-year-old female with known age-related osteoporosis (M81.0) and Vitamin D deficiency. She sustained a right femoral neck fracture. Documentation links the fracture to the traumatic event while acknowledging the systemic bone density issues that contribute to the risk of non-union.

Billing Focus: Associated chronic conditions (M81.0, E55.9).

Record the presence or absence of neurovascular deficits distal to the fracture site.

Example: Physical exam of the right lower extremity shows the limb is shortened and externally rotated. Pedis pulses are 2 plus and equal bilaterally. Sensation is intact to light touch in the L4-S1 distributions. No signs of compartment syndrome or acute vascular compromise noted.

Billing Focus: Clinical severity and exam complexity.

Relevant CPT Codes