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O10.912

Billable

Unspecified pre-existing hypertension complicating pregnancy, second 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 second trimester (weeks 14-20) who has high blood pressure that existed before she became pregnant.

Coding Tips

  • •Verify the second trimester timing and document that hypertension predates the pregnancy
  • •Distinguish from gestational hypertension which develops during pregnancy; this code is for pre-existing conditions only

Code Hierarchy

└O10Pre-existing hypertension complicating pregnancy, childbirth and the puerperium└O10.9Unspecified pre-existing hypertension complicating pregnancy, childbirth and the puerperium└O10.91Unspecified pre-existing hypertension complicating pregnancy└O10.912Unspecified pre-existing hypertension complicating pregnancy, second trimester
└O10.912Unspecified pre-existing hypertension complicating pregnancy, second trimester

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