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O99.820

Billable

Streptococcus B carrier state complicating pregnancy

This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).

What This Code Means

A pregnant woman is a carrier of Streptococcus B bacteria, which can be passed to the baby during delivery. Carriers typically have no symptoms but may need antibiotics during labor to protect the newborn.

Coding Tips

  • This code indicates carrier status only, not active infection; document whether the patient is a known carrier or newly identified
  • Specify the trimester when coding; this is the unspecified trimester code, so use O99.821, O99.822, or O99.823 if trimester is documented

Code Hierarchy

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