Pregnancy with Edema and HTN ICD 9

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A pregnant patient visits with Hypertension and Edema.

646.13 - Edema or excessive weight gain in pregnancy without mention of hypertension

As the patient is previously hypertensive, I used the code , 642.73.

Is there any additional dx we need to use with 642.73?

Pregnancy with Edema and HTN ICD 9