ICD-10-CM · I15.9
ICD-10 I15.9: Secondary hypertension, unspecified
HTN with identifiable secondary cause (renovascular, endocrine, etc.).
Code
I15.9
Category
Diseases of the circulatory system (I00-I99)
Clinical context
HTN with identifiable secondary cause (renovascular, endocrine, etc.).
Documentation requirements
- Secondary cause workup
- Differentiation from I10 essential HTN
Common related procedures
- 82570
- Renal artery imaging
- Aldosterone testing
Common payer denial patterns
- Specify cause when known (I15.0-I15.8)
Frequently asked questions
What does ICD-10 I15.9 mean?
Secondary hypertension, unspecified
When is this code documented?
HTN with identifiable secondary cause (renovascular, endocrine, etc.).
What documentation supports this code?
Secondary cause workup; Differentiation from I10 essential HTN.
What are common denials associated with this diagnosis?
Specify cause when known (I15.0-I15.8).
Related diagnoses
Sources
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