ICD-10-CM Billable Code

O26.843

Uterine size-date discrepancy, third trimester

Clinical Classification Guidelines

Medical Intelligence & Overview

Uterine size-date discrepancy during the third trimester is a condition where the size of the uterus does not match the expected gestational age based on the last menstrual period or ultrasound assessments. This discrepancy can indicate various underlying issues with fetal growth, placental function, or maternal health. Recognizing and monitoring this condition is essential to ensure the well-being of both mother and baby throughout pregnancy.

Causes & Symptoms

Clinical Causes: Fetal growth restriction (IUGR) Multiple pregnancies (twins, triplets, etc.) Amniotic fluid abnormalities (oligohydramnios or polyhydramnios) Wrong dates due to inaccurate last menstrual period or early ultrasound miscalculations Placental insufficiency limiting nutrient and oxygen transfer Maternal health conditions such as hypertension or diabetes Fetal anomalies or genetic disorders Uterine abnormalities or scars from previous surgeries

Key Symptoms: No specific symptoms, often detected during routine ultrasounds Fetal growth concerns or measurements that do not align with gestational age Reduced or excessive amniotic fluid levels In some cases, decreased fetal movements

Diagnostic & Treatment

Diagnosis Path: Diagnosis involves a combination of clinical assessments, ultrasound examinations, and possibly other testing methods. Healthcare providers primarily use ultrasound to measure fetal size and uterine volume to identify discrepancies. Comparing these measurements against gestational age helps determine if there's a significant difference. If available, reviewing the patient's menstrual history and previous ultrasound data ensures accurate dating. Additional tests may include doppler studies to assess blood flow and biophysical profiles to evaluate fetal well-being.

Treatment Protocols: Management strategies depend on the severity of the size-date discrepancy and the condition of the fetus and mother. Common approaches include: - Increased monitoring through regular ultrasounds and fetal assessments - Medical interventions to address maternal health issues such as controlling blood pressure or blood sugar levels - Nutritional counseling and ensuring adequate maternal nutrition - Planning for early delivery if fetal compromise is detected, often through cesarean section - In some cases, hospitalization might be necessary for close observation The goal is to optimize outcomes by balancing the timing of delivery with the ongoing assessment of fetal health.

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

Clinical Advice & FAQs

Billing Guidance

Is O26.843 a billable ICD-10 code?
Yes, O26.843 is a specific, billable code that can be used to indicate a diagnosis for reimbursement purposes.

Documentation

How do I report O26.843?
Clinical documentation must specify the nature of Uterine size-date discrepancy, third trimester and any associated comorbidities for accurate reporting.

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