ICD-10-CM code · FY2027
I16.9 Hypertensive crisis, unspecified
BillableValid for claims as a specific diagnosis code
About I16.9
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Coding notes for I16.9
No notes of its own; the notes below apply from the codes above it.
Also applies, from I16 Hypertensive crisis
Code also Another code may be needed as well; the order depends on the encounter.
Block I10-I1A notes (apply to every code in it)
Excludes1 Not coded here: never report these together with this code (use the code given instead).
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
Chapter 9 notes (apply to every code in it)
Excludes2 Not part of this condition, but a patient can have both: report both codes when both apply.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- transient cerebral ischemic attacks and related syndromes (G45.-)
Related codes in I16
- I16.0 Hypertensive urgencyBillable
- I16.1 Hypertensive emergencyBillable
Latest research on hypertensive crisis
- 2 Minute Medicine Rewind August 10, 2026
- Intensive multifaceted management may improve blood pressure control among low-income patients
- 2 Minute Medicine Rewind August 19, 2024
- 2 Minute Medicine Rewind June 17, 2024
- Early blood-pressure control not associated with improved outcomes in patients with undifferentiated stroke
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See 2MM+ plansICD-10-CM FY2027 code set, as published by the CDC National Center for Health Statistics (NCHS) and CMS, effective October 1, 2026 to September 30, 2027. Codes, titles and notes are shown as published. Check payer rules and the official guidelines before billing. This page is not medical advice.
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