ICD-9-CM Official Guidelines for Coding and Reporting - Office of ...

• 3 with heart failure and with CKD stage V or end stage
renal disease
The appropriate code from category 585, Chronic kidney
disease, should be used as a secondary code with a code from
category 404 to identify the stage of kidney disease.
See Section I.C.10.a for information on the coding of chronic
kidney disease.
5) Hypertensive Cerebrovascular Disease
First assign codes from 430-438, Cerebrovascular disease, then
the appropriate hypertension code from categories 401-405.
6) Hypertensive Retinopathy
Two codes are necessary to identify the condition. First assign
the code from subcategory 362.11, Hypertensive retinopathy,
then the appropriate code from categories 401-405 to indicate
the type of hypertension.
7) Hypertension, Secondary
Two codes are required: one to identify the underlying etiology
and one from category 405 to identify the hypertension.
Sequencing of codes is determined by the reason for
admission/encounter.
8) Hypertension, Transient
Assign code 796.2, Elevated blood pressure reading without
diagnosis of hypertension, unless patient has an established
diagnosis of hypertension. Assign code 642.3x for transient
hypertension of pregnancy.
9) Hypertension, Controlled
Assign appropriate code from categories 401-405. This
diagnostic statement usually refers to an existing state of
hypertension under control by therapy.
10) Hypertension, Uncontrolled
Uncontrolled hypertension may refer to untreated hypertension
or hypertension not responding to current therapeutic regimen.
In either case, assign the appropriate code from categories
401-405 to designate the stage and type of hypertension. Code
to the type of hypertension.
11) Elevated Blood Pressure
For a statement of elevated blood pressure without further
specificity, assign code 796.2, Elevated blood pressure reading
ICD-9-CM Official Guidelines for Coding and Reporting
Effective October 1, 2008
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