405.99
Other unspecified secondary hypertension
The ICD-9 code for other unspecified secondary hypertension is 405.99.
Legacy code — retired October 1, 2015ICD-10-CM equivalent
Informational only — GEM mappings are approximate, not guaranteed one-to-one equivalents.
View ICD-9 → ICD-10 crosswalk for 405.99 →