I15.9

Secondary hypertension, unspecified

Billable / specific

I15.9 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Excludes1

Not coded here — never report together with this code.

Not included here — may be reported together when both conditions exist.

certain conditions originating in the perinatal period (P04-P96) (from I15)
certain infectious and parasitic diseases (A00-B99) (from I15)
complications of pregnancy, childbirth and the puerperium (O00-O9A) (from I15)
congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) (from I15)
endocrine, nutritional and metabolic diseases (E00-E88) (from I15)
injury, poisoning and certain other consequences of external causes (S00-T88) (from I15)
neoplasms (C00-D49) (from I15)
symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94) (from I15)
systemic connective tissue disorders (M30-M36) (from I15)
transient cerebral ischemic attacks and related syndromes (G45.-) (from I15)
hypertensive disease complicating pregnancy, childbirth and the puerperium (O10-O11, O13-O16) (from I15)
secondary hypertension involving vessels of brain (I60-I69) (from I15)
secondary hypertension involving vessels of eye (H35.0-) (from I15)

Add a code to identify the following, if applicable.

code to identify: (from I15)
exposure to environmental tobacco smoke (Z77.22) (from I15)
history of tobacco dependence (Z87.891) (from I15)
occupational exposure to environmental tobacco smoke (Z57.31) (from I15)
tobacco dependence (F17.-) (from I15)
tobacco use (Z72.0) (from I15)

An additional code may be needed.