O23.23 Infections of urethra in pregnancy, third trimester

Name of the Condition

• Infections of urethra in pregnancy, third trimester
• ICD-10 Code: O23.23

Summary

Infections of the urethra during the third trimester of pregnancy involve bacterial, viral, or fungal inflammation of the urethral lining. These infections are a subset of genitourinary tract infections and may present with localized or systemic symptoms. Prompt recognition and treatment are important to prevent progression to more severe infections, such as cystitis or pyelonephritis, and to reduce risks to both the mother and fetus.

Causes

Urethral infections in the third trimester are often caused by ascending bacterial pathogens, most commonly Escherichia coli. Hormonal changes, such as increased progesterone, can relax urethral smooth muscle and alter urinary flow, facilitating bacterial entry. Reduced bladder emptying and anatomical pressure from the growing uterus may also contribute to infection development. Viral or fungal infections may occur due to immunological shifts during pregnancy.

Risk Factors

• Previous history of urethral or urinary tract infections.
• Pregnancy-related urinary stasis.
• Sexual activity, which may introduce bacteria.
• Poor hygiene practices.
• Underlying conditions like diabetes or immunosuppression.

Symptoms

• Burning or pain during urination (dysuria).
• Frequent or urgent urination.
• Discomfort or irritation at the urethral opening.
• Mild lower abdominal or pelvic discomfort.

Diagnosis

Diagnosis typically involves urinalysis to detect bacteria or abnormal cells, urine culture to identify pathogens, and vaginal or cervical swabs for specific infections. Imaging or additional tests may be used if complications are suspected.

Treatment Options

Treatment may include antibiotics, antivirals, or antifungals tailored to the identified pathogen. Hydration and urinary tract hygiene are often recommended. Severe cases may require hospitalization for intravenous therapy.

Prognosis and Follow-Up

With prompt treatment, most urethral infections resolve without long-term complications. Follow-up may involve repeat urine cultures to ensure clearance of infection and monitoring for recurrence.

Complications

Untreated infections may progress to cystitis, pyelonephritis, or systemic infections. Severe cases can increase risks of preterm labor or fetal complications.

Lifestyle & Prevention

• Maintain good hygiene practices.
• Stay hydrated to promote urinary flow.
• Urinate after sexual activity.
• Avoid irritants like harsh soaps or douches.
• Wear breathable, non-tight clothing.

When to Seek Professional Help

Seek care if symptoms worsen, persist after treatment, or if systemic signs (fever, chills) develop. Prompt evaluation is important for pregnant individuals with suspected infections.

Tips for Medical Coders

Use O23.23 for infections of the urethra specifically in the third trimester of pregnancy. Document trimester and infection type (bacterial, viral, fungal) to support code assignment. Ensure differentiation from other genitourinary infections or trimester-specific codes.