Hypernatremia / hyperosmolarity, severe or symptomatic

ICD10 Diagnosis
Dx:	Hypernatremia / hyperosmolarity, severe or symptomatic
ICD10 code:	E87.0
Pre-ICD10 counterpart:	Hypernatremia NA Greater Than 160
Charlson/ALERT Scale:	none
APACHE Como Component:	none
APACHE Acute Component:	2019-0: Metabolic/Renal NOS, 2019-0: Renal/Metabolic NOS
Start Date:
Stop Date:
External ICD10 Documentation	ICD-10 CM Wikipedia ICD-10 Wikipedia WHO ICD10 documentation ICD10data.com

This diagnosis is a part of ICD10 collection.

• SMW
  • 2019-01-01
  • 2999-12-31
  • E87.0

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Additional Info

Repeated events

If this happens repeatedly during the same ward or unit stay, only code it the first time it happens, regardless of whether it is an admit or acquired diagnosis, rather than each time it happens. See ICD10 codes only coded the first time for other diagnoses coded this way.

Example:

A person has a self-limited episode of A-fib. It goes away and then recurs. Only code the first one. A person has a self-limited episode of A-fib. It goes away but then he has an episode of V-tach. As this is a different diagnosis, both of these should be listed, but only code once each. Patient comes in with hypokalemia. It’s treated and remits, but the next day it recurs. Only code the first time.

• The parameters for coding hypernatremia are any of the following 3 items: (This change is active as of Feb 12, 2018)
  • Na+ > 160 OR
  • Any Na+ > 145 AND in the presence of signs or symptoms believed to be due to hypernatremia OR
  • Any Na+ > 145 with active treatment for hypernatremia

• Main signs and symptoms of hypernatremia are:
  • CNS - confusion, restlessness, lethargy, irritability, muscle twitching, hyperreflexia, tremulousness, ataxia, spasticity, seizures, coma

Altered mental status coding guideline

Coding altered mental status in ICD10 can be complex, see ICD10 Guideline for coding altered mental status for more info.

Alternate ICD10s to consider coding instead or in addition

• Disorder of mineral metabolism, NOS
• Diabetes insipidus, neurogenic/central (DI)
• Disorientation
• Psychiatric drug NOS, overdose/toxicity
• Hyperaldosteronism
• Diarrhea, noninfectious NOS

Candidate Combined ICD10 codes

Related CCI Codes

Data Integrity Checks (automatic list)

none found

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ICD10 Categories: Abdominal trauma, Abortion, Acute intoxication, Addiction, Adrenal Insufficiency, Adverse effect, Alcohol related, Allergy, Anemia, Anesthetic related, Aneurysm, Antibiotic resistance, Antidepressant related, Aortic Aneurysm, Arrhythmia, Arterial thromboembolism, Asthma, Atherosclerosis, Awaiting/delayed transfer, Bacteria, Benign neoplasm, Breast disease, Burn, COVID, Cannabis related, Cardiac septum problem, Cardiovascular, Cerebral Hemorrhage/Stroke, Chemical burn, Chronic kidney disease, Cirrhosis, Cocaine related, Decubitus ulcer, Delirium, Dementia, Diabetes, Diagnosis implying death, Double duty pathogen, ENT, Encephalitis, Encephalopathy, Endocrine disorder, Endocrine neoplasm, Exposure, Eye, Female genital neoplasm, Fistula, Fracture, Fungus, GI ulcer, Gastroenteritis, Gastrointestinal, Gastrointestinal neoplasm, Hallucinogen related, Has one, Head trauma, Head trauma (old), Healthcare contact, Heart valve disease, Heme/immunology, Heme/immunology neoplasm, Hemophilia, Hemorrhage, Hepatitis, Hereditary/congenital, Hernia, Hypertension, Hypotension, Iatrogenic, Iatrogenic infection, Iatrogenic mechanism, Imaging, Infection requiring pathogen, Infection with implied pathogen, Infectious disease, Inflammatory Bowel Disease, Influenza, Inhalation, Intra-abdominal infection, Ischemia, Ischemic gut, Ischemic heart disease, Joint/ligament trauma, Leukemia, Liver disease, Liver failure, Lower limb trauma, Lower respiratory tract infection, Lymphoma, Male genital neoplasm, Mechanism, Meningitis, Metabolic/nutrition, Metastasis, Misc, Muscle problem, Muscles/tendon trauma, Musculoskeletal/soft tissue, Musculoskeletal/soft tissue neoplasm, Myocardial Infarction... further results