S72.336N Nondisplaced oblique fracture of shaft of unspecified femur, subsequent encounter for open fracture type IIIA, IIIB, or IIIC with nonunion

Name of the Condition

• Nondisplaced Oblique Fracture of Shaft of Unspecified Femur, Subsequent Encounter for Open Fracture Type IIIA, IIIB, or IIIC with Nonunion

Summary

A nondisplaced oblique fracture of the shaft of the unspecified femur is a break in the long, central portion of the thigh bone where the fracture line runs at an angle, and the bone fragments remain aligned. This type of fracture involves the diaphysis (main structural part) of the femur. The term "subsequent encounter" indicates this is a follow-up visit for the fracture, and "open fracture type IIIA, IIIB, or IIIC" refers to a severe open fracture with extensive soft tissue damage. "Nonunion" means the fracture has failed to heal properly after an expected period.

Causes

Such fractures often result from high-impact trauma, such as motor vehicle accidents, falls from significant heights, or direct blows to the thigh. Rotational forces or axial loading (e.g., during sports or industrial injuries) can also cause this type of break. Open fractures occur when the bone pierces the skin, typically due to severe trauma, and nonunion may develop if the fracture does not heal correctly.

Risk Factors

• Participation in high-impact sports or activities.
• Osteoporosis or other bone-weakening conditions.
• Advanced age, due to decreased bone density.
• Prior history of fractures or bone abnormalities.
• Trauma or accidents involving significant force.
• Poor blood supply to the fracture site.
• Infection or other complications from the initial injury.

Symptoms

• Persistent pain at the fracture site, even after initial treatment.
• Swelling, bruising, or tenderness around the fracture site.
• Inability to bear weight on the affected leg.
• Possible numbness or tingling if nerve involvement occurs.
• Visible signs of nonunion, such as a gap or abnormal movement at the fracture site.
• Signs of infection, such as redness, warmth, or drainage (in open fractures).

Diagnosis

Physical examination to assess pain, alignment, and function. Imaging studies, such as X-rays, CT scans, or MRIs, to evaluate the fracture site and check for nonunion. Assessment of the open fracture type and any associated soft tissue damage. Evaluation of healing progress and potential complications.

Treatment Options

Treatment may include surgical intervention to stabilize the fracture, such as internal fixation with plates or screws. Bone grafting may be necessary to promote healing in cases of nonunion. Antibiotics or other medications to manage infection. Physical therapy to restore strength and mobility. Close monitoring to ensure proper healing.

Prognosis and Follow-Up

Prognosis depends on the severity of the fracture, the success of treatment, and the patient's overall health. Follow-up care is essential to monitor healing and address any complications. Regular imaging studies may be needed to assess progress. Long-term rehabilitation may be required to restore function.

Complications

• Nonunion or delayed healing.
• Infection, especially in open fractures.
• Nerve or blood vessel damage.
• Chronic pain or stiffness.
• Malunion (improper healing).
• Limited mobility or functional impairment.

Lifestyle & Prevention

• Avoid high-impact activities that increase fracture risk.
• Maintain bone health through diet and exercise.
• Use protective equipment during sports or work.
• Follow post-injury care instructions to promote healing.
• Attend all follow-up appointments to monitor progress.

When to Seek Professional Help

Seek medical attention if you experience persistent pain, swelling, or difficulty bearing weight. Contact a healthcare provider if you notice signs of infection, such as redness, warmth, or drainage. Immediate care is needed for any new or worsening symptoms.

Tips for Medical Coders

Document the fracture type (oblique, nondisplaced), location (shaft of unspecified femur), encounter type (subsequent), open fracture classification (IIIA, IIIB, or IIIC), and nonunion status. Ensure detailed clinical notes support the code selection, including evidence of nonunion and the specific open fracture type. Verify that the encounter is indeed subsequent and not initial or sequela.