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T50.3

⚠ Non-billable (Header)

Poisoning by, adverse effect of and underdosing of electrolytic, caloric and water-balance agents

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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Also Known As

Poisoning by, adverse effect of and underdosing of oral rehydration salts
✓ No additional coding notes for T50.3

Child Codes (1)

T50.3XPoisoning by, adverse effect of and underdosing of electrolytic, caloric and water-balance agents

Clinical Description

ICD-10-CM code T50.3 represents poisoning by, adverse effect of and underdosing of electrolytic, caloric and water-balance agents. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 5-character code at the 4th level of specificity. There are 1 more specific child codes under T50.3.

Frequently Asked Questions

What is ICD-10 code T50.3?

ICD-10-CM code T50.3 is "Poisoning by, adverse effect of and underdosing of electrolytic, caloric and water-balance agents". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T50.3 a billable ICD-10 code?

No, T50.3 is a non-billable header code. A more specific child code must be used for billing.

Related Codes in T50

Other codes in the same category that may be relevant for differential coding:

T50.0Poisoning by, adverse effect of and underdosing of mineralocorticoids and their antagonistsT50.1Poisoning by, adverse effect of and underdosing of loop [high-ceiling] diureticsT50.2Poisoning by, adverse effect of and underdosing of carbonic-anhydrase inhibitors, benzothiadiazides and other diureticsT50.4Poisoning by, adverse effect of and underdosing of drugs affecting uric acid metabolismT50.5Poisoning by, adverse effect of and underdosing of appetite depressantsT50.6Poisoning by, adverse effect of and underdosing of antidotes and chelating agentsT50.7Poisoning by, adverse effect of and underdosing of analeptics and opioid receptor antagonistsT50.8Poisoning by, adverse effect of and underdosing of diagnostic agentsT50.9Poisoning by, adverse effect of and underdosing of other and unspecified drugs, medicaments and biological substancesT50.APoisoning by, adverse effect of and underdosing of bacterial vaccinesT50.BPoisoning by, adverse effect of and underdosing of viral vaccinesT50.ZPoisoning by, adverse effect of and underdosing of other vaccines and biological substances

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Code Information

CodeT50.3
BillableNo — Header code
ParentT50
CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)
Excludes10 rule(s)
Excludes20 note(s)
Child codes1

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)