ICD10BillableValid for clinical use
ICD-10 Code E87.6: Hypokalemia
Reviewed by HealthAssure Clinical TeamUpdated 26 May 2026
What is this code?
ICD-10 codes are diagnosis classification codes used in healthcare records, reporting, coding workflows, and billing support. This code sits within the broader ICD-10 area for Endocrine, nutritional and metabolic diseases (E00-E89).
When is it used?
- May be used when a clinician documents hypokalemia in a patient's medical record.
- May appear in hospital records, claims, referrals, and clinical documentation.
- This code can be used as a clinically usable diagnosis entry in standardized coding workflows.
What it does not mean
- A code alone does not explain severity, treatment plan, or outcome.
- A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
Code hierarchy
chapter
4Endocrine, nutritional and metabolic diseases (E00-E89)
block
E70-E88Metabolic disorders
category
E87Other disorders of fluid, electrolyte and acid-base balance
currentE87
Official coding notes
Inclusion terms
- Potassium [K] deficiency
Where you may see this code
You may see this code in hospital records, discharge summaries, insurance claims, encounter documentation, referrals, or other healthcare billing and coding records.
Related specialists
EndocrinologistGeneral Physician
Related codes
Sibling codes
E87.0Hyperosmolality and hypernatremiabillableE87.1Hypo-osmolality and hyponatremiabillableE87.2AcidosisE87.3AlkalosisbillableE87.4Mixed disorder of acid-base balancebillableE87.5HyperkalemiabillableE87.7Fluid overloadE87.8Other disorders of electrolyte and fluid balance, not elsewhere classifiedbillable
Coverage-related procedures and services
CPT 83735high
MAGNESIUM
Source: CMS coverage guidance
CPT 00532high
ANESTHESIA FOR ACCESS TO CENTRAL VENOUS CIRCULATION
Source: CMS coverage guidance
CPT 01420high
ANESTHESIA FOR ALL CAST APPLICATIONS, REMOVAL, OR REPAIR INVOLVING KNEE JOINT
Source: CMS coverage guidance
CPT 01730high
ANESTHESIA FOR ALL CLOSED PROCEDURES ON HUMERUS AND ELBOW
Source: CMS coverage guidance
CPT 01380high
ANESTHESIA FOR ALL CLOSED PROCEDURES ON KNEE JOINT
Source: CMS coverage guidance
CPT 01820high
ANESTHESIA FOR ALL CLOSED PROCEDURES ON RADIUS, ULNA, WRIST, OR HAND BONES
Source: CMS coverage guidance
Mapped diagnoses and classifications
SNOMED_CT 61120003high
Acute hypokalemia
Source: SNOMED International ICD-10 map
SNOMED_CT 10469003high
Chronic hypokalemia
Source: SNOMED International ICD-10 map
SNOMED_CT 237853005high
Drug-induced hypokalemia
Source: SNOMED International ICD-10 map
SNOMED_CT 237851007high
Hypokalaemic acidosis
Source: SNOMED International ICD-10 map
SNOMED_CT 43339004high
Hypokalemia
Source: SNOMED International ICD-10 map
SNOMED_CT 237852000high
Hypokalemia with normal acid-base balance
Source: SNOMED International ICD-10 map
Coding guidelines
Compatibility
Legacy and official ICD code match exactly.
Legacy codes
E87.6
Common synonyms
Hypokalemia
Frequently asked questions
About this content
This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.