by Kamron Walsh
Published 3 years ago
Updated 2 years ago
4 min read
Short description: Hypertension NOS. ICD-9-CM 401.9 is a billable medical code that can be used to indicate a diagnosis on a reimbursement claim, however, 401.9 should only be used for claims with a date of service on or before September 30, 2015.
In ICD-9, essential hypertension was coded using 401.0 (malignant), 401.1 (benign), or 401.9 (unspecified). ICD-10 uses only a single code for individuals who meet criteria for hypertension and do not have comorbid heart or kidney disease. That code is I10, Essential (primary) hypertension.
In response to the NPRM, we received comments requesting that we add ICD-9-CM code 401.1, benign essential hypertension, to the list of ICD-9-CM Codes Covered by Medicare for lipid …
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