I16
Non-billableHypertensive crisis
Hypertensive crisis
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Excludes 1
Codes that cannot be used together with this code (mutual exclusion)
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations, and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •systemic connective tissue disordersM30-M36
- •transient cerebral ischemic attacks and related syndromesG45
- •hypertensive disease complicating pregnancy, childbirth and the puerperium,O10-O11, O13-O16
Use Additional Code
Additional codes that should follow this code
Code Also
A second code may be required; sequencing depends on circumstances
Child Codes (3)
Related Conditions
Also Known As / Clinical Terms(14)
UMLS
- Crises, HypertensiveC0020546
- Crisis hypertensiveC0020546
- Crisis, HypertensiveC0020546
- Emergencies, HypertensiveC0020546
- Emergency, HypertensiveC0020546
- Hypertensive CrisesC0020546
- Hypertensive CrisisC0020546
- Hypertensive EmergenciesC0020546
- Hypertensive EmergencyC0020546
- Hypertensive crisesC0020546
- Hypertensive crisisC0020546
- Hypertensive crisis (disorder)C0020546
- crisis hypertensiveC0020546
- hypertensive crisisC0020546
Frequently Asked Questions
What is the ICD-10 code for hypertensive crisis?
The ICD-10-CM code for hypertensive crisis is I16. The full clinical description is "Hypertensive crisis". I16 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code I16 mean?
ICD-10-CM code I16 represents “Hypertensive crisis”. It is classified under Chapter 9: Diseases of the Circulatory System and is a non-billable header code. Use a more specific child code for billing purposes.
Is I16 a billable code?
No, I16 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 3 child codes under I16.
What chapter is I16 in?
I16 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I16?
I16 has Excludes1 notes indicating codes that cannot be used together with it, including: neonatal hypertension (P29.2); primary pulmonary hypertension (I27.0).
What are the subcategories under I16?
I16 has 3 child codes, including: I16.0 (Hypertensive urgency), I16.1 (Hypertensive emergency), I16.9 (Hypertensive crisis, unspecified).
Are additional codes required with I16?
Yes, when using I16, also report: ; exposure to environmental tobacco smoke (Z77.22); history of tobacco dependence (Z87.891); occupational exposure to environmental tobacco smoke (Z57.31); tobacco dependence (F17.-); tobacco use (Z72.0).
What are the UMLS CUIs for I16?
I16 is linked to 1 UMLS Concept Unique Identifier: C0020546. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I16 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like hypertensive crisis affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of I16?
There is no direct ICD-11 mapping available for I16 in the WHO crosswalk tables. This may mean the concept is classified differently in ICD-11. Use the ICD-10 to ICD-11 converter to search for related codes.
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.