I16.1
BillableHypertensive emergency
Hypertensive emergency
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 to identify:
- •exposure to environmental tobacco smokeZ77.22
- •history of tobacco dependenceZ87.891
- •occupational exposure to environmental tobacco smokeZ57.31
- •tobacco dependenceF17
- •tobacco useZ72.0
- code, if applicable, to identify specific organ dysfunction, such as:
- •acute kidney injuryN17
- •acute myocardial infarctionI21
- •acute pulmonary edema (left and/or right ventricular failure),J81.0, I50
- •aortic dissectionI71.0
- •cerebral hemorrhage. ,I60, I61, I62
- •cerebral infarctionI63
- •eclampsiaO15
- •hypertensive encephalopathyI67.4
- •seizureR56.9
Code Also
A second code may be required; sequencing depends on circumstances
Related Conditions
Also Known As / Clinical Terms(11)
UMLS
Clinical Terms
- Hypertensive emergency (disorder)
- emergency hypertensive
- emergencies hypertensive
Frequently Asked Questions
What is the ICD-10 code for hypertensive emergency?
The ICD-10-CM code for hypertensive emergency is I16.1. The full clinical description is "Hypertensive emergency". I16.1 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code I16.1 mean?
ICD-10-CM code I16.1 represents “Hypertensive emergency”. It is classified under Chapter 9: Diseases of the Circulatory System and is a billable/specific code that can be used on a claim.
Is I16.1 a billable code?
Yes, I16.1 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is I16.1 in?
I16.1 is in Chapter 9: Diseases of the Circulatory System (codes I00-I99).
What codes cannot be used with I16.1?
I16.1 has Excludes1 notes indicating codes that cannot be used together with it, including: neonatal hypertension (P29.2); primary pulmonary hypertension (I27.0).
Are additional codes required with I16.1?
Yes, when using I16.1, 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); code, if applicable, to identify specific organ dysfunction, such as:; acute kidney injury (N17.-); acute myocardial infarction (I21.-); acute pulmonary edema (left and/or right ventricular failure) (J81.0, I50.-); aortic dissection (I71.0-); cerebral hemorrhage (I60.-. I61.-, I62.-); cerebral infarction (I63.-); eclampsia (O15.-); hypertensive encephalopathy (I67.4); seizure (R56.9).
What SNOMED CT codes does I16.1 map to?
I16.1 maps to 2 SNOMED CT concepts: 706882009, 132721000119104. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for I16.1?
I16.1 is linked to 1 UMLS Concept Unique Identifier: C0745136. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does I16.1 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like hypertensive emergency 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 I16.1?
There is no direct ICD-11 mapping available for I16.1 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.