O36.8139 Decreased fetal movements, third trimester, other fetus

Name of the Condition

• Decreased fetal movements, third trimester, other fetus

Summary

Decreased fetal movements in the third trimester refer to a reduction in the normal activity or movements of a fetus, as perceived by the mother. This condition may indicate potential concerns with fetal well-being and requires clinical evaluation to assess fetal health.

Causes

Causes can include placental insufficiency, fetal growth restriction, umbilical cord issues, or maternal health problems such as hypertension or diabetes. Other factors may involve fetal position or maternal perception of movement.

Risk Factors

• Advanced maternal age
• Pre-existing conditions (e.g., hypertension, diabetes)
• Previous pregnancy complications
• Substance use (e.g., smoking, alcohol)
• Multiple gestation

Symptoms

Noticeable reduction in fetal movements compared to prior patterns. Maternal concern about fetal activity levels.

Diagnosis

Diagnosis involves assessing fetal well-being through methods such as ultrasound to evaluate amniotic fluid and fetal movement, non-stress tests to monitor heart rate, and maternal reporting of movement patterns. Clinical evaluation may also include physical exams and history review.

Treatment Options

Close monitoring of fetal activity and maternal health. Addressing underlying maternal conditions (e.g., managing hypertension). Possible hospital admission for observation or further testing.

Prognosis and Follow-Up

Prognosis depends on the underlying cause and timely intervention. Follow-up may involve regular fetal movement monitoring, repeat testing, or delivery planning if concerns persist.

Complications

Potential complications include fetal distress, stillbirth, or preterm delivery if decreased movements indicate significant fetal compromise.

Lifestyle & Prevention

Encourage maternal awareness of fetal movement patterns. Avoid substances that may reduce fetal activity. Maintain regular prenatal care to monitor maternal and fetal health.

When to Seek Professional Help

Seek care if fetal movements decrease significantly or stop, as this may signal an urgent issue requiring immediate evaluation.

Tips for Medical Coders

Code O36.8139 is used for decreased fetal movements in the third trimester affecting an "other" fetus (not fetus 1 or 2). Documentation should specify the fetus affected and the trimester. Ensure clinical notes support the use of this code for accurate reporting.