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O10.913

Billable

Unspecified pre-existing hypertension complicating pregnancy, third trimester

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

What This Code Means

A pregnant woman in her third trimester (weeks 21 until delivery) who has high blood pressure that existed before she became pregnant.

Coding Tips

  • Confirm third trimester timing and monitor for development of pre-eclampsia which would require a different code
  • Document the baseline blood pressure readings from before pregnancy when available for clinical context

Code Hierarchy

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