FAQ Directory: HEDIS

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12.15.2017 Controlling High Blood Pressure When confirming a hypertension diagnosis, a code from the Essential Hypertension Value Set can be used. This value set includes only ICD-10 codes. May ICD-9 codes be used to confirm the diagnosis?

Yes. Organizations may look back any time during a member’s history to confirm the diagnosis (including when ICD-9 codes were in use). Documentation of ICD-9 diagnosis codes 401.0, 401.1 or 401.9 may also confirm a diagnosis of hypertension.

HEDIS 2018