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 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.-)
- 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 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)
Code Also
A second code may be required; sequencing depends on circumstances
- any identified hypertensive disease (I10-I15, I1A)
Also Known As / Clinical Terms
Frequently Asked Questions
What is ICD-10 code I16.1?
ICD-10-CM code I16.1 represents "Hypertensive emergency". It 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 you should also code: code to identify:; 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.
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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.