T50.3X4 is the authoritative medical code for Poisoning by electrolytic, caloric and water-balance agents, undetermined. This classification is used in medical billing and clinical recording to specify the clinical criteria for poisoning by electrolytic, caloric and water-balance agents, undetermined (ICD-10-CM T50.3X4), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Poisoning by electrolytic, caloric and water-balance agents, undetermined is a non-billable ICD-10-CM category code T50.3X4. A more specific billable subcode must be selected for claims submission. Includes: adverse effect of correct substance properly administered; poisoning by overdose of substance; poisoning by wrong substance given or taken in error; underdosing by (inadvertently) deliberately taking less substance than prescribed or instructed. Excludes1 (not coded here): toxic reaction to local anesthesia in pregnancy O29.3-. Excludes2 (not included here): abuse and dependence of psychoactive substances F10-F19; abuse of non-dependence-producing substances F55.-; immunodeficiency due to drugs D84.821; drug reaction and poisoning affecting newborn P00-P96; pathological drug intoxication inebriation F10-F19. Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS T88.7; aspirin gastritis K29.-; blood disorders D56-D76; contact dermatitis L23-L25; dermatitis due to substances taken internally L27.-; nephropathy N14.0-N14.2. Use additional code: code(s) to specify:; manifestations of poisoning; underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9); underdosing of medication regimen (Z91.12-, Z91.13-). 7th character: The appropriate 7th character is to be added to each code from category T50.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T50.3X4 in the official ICD-10-CM tabular list.
Includes
Conditions the official ICD-10-CM tabular list includes under this code.
- adverse effect of correct substance properly administered
- poisoning by overdose of substance
- poisoning by wrong substance given or taken in error
- underdosing by (inadvertently) deliberately taking less substance than prescribed or instructed
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- toxic reaction to local anesthesia in pregnancy O29.3-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- abuse and dependence of psychoactive substances F10-F19
- abuse of non-dependence-producing substances F55.-
- immunodeficiency due to drugs D84.821
- drug reaction and poisoning affecting newborn P00-P96
- pathological drug intoxication inebriation F10-F19
Code First
Underlying conditions that must be sequenced before this code.
- , for adverse effects, the nature of the adverse effect, such as:
- adverse effect NOS T88.7
- aspirin gastritis K29.-
- blood disorders D56-D76
- contact dermatitis L23-L25
- dermatitis due to substances taken internally L27.-
- nephropathy N14.0-N14.2
Use Additional Code
Supplementary codes the tabular list directs you to add.
- code(s) to specify:
- manifestations of poisoning
- underdosing or failure in dosage during medical and surgical care (Y63.6, Y63.8-Y63.9)
- underdosing of medication regimen (Z91.12-, Z91.13-)
Frequently Asked Questions (FAQ) & Clinical Guidance
Can T50.3X4 be billed directly?
No. T50.3X4 (Poisoning by electrolytic, caloric and water-balance agents, undetermined) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does T50.3X4 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T50.
What can't be coded together with T50.3X4?
Per Excludes1 instructions, T50.3X4 must not be reported with: toxic reaction to local anesthesia in pregnancy (O29.3-).
Can T50.3X4 be reported alongside related conditions?
Per Excludes2 instructions, T50.3X4 and the following may both be reported when both are present: abuse and dependence of psychoactive substances (F10-F19); abuse of non-dependence-producing substances (F55.-); immunodeficiency due to drugs (D84.821); drug reaction and poisoning affecting newborn (P00-P96).
Does T50.3X4 need to be sequenced after another code?
Yes. Code first: , for adverse effects, the nature of the adverse effect, such as:; adverse effect NOS (T88.7); aspirin gastritis (K29.-); blood disorders (D56-D76).
Codes in This Family (40)
Official ICD-10-CM classifications in the same code family as T50.3X4, with their registry titles.
- T50 — Poisoning by, adverse effect of and underdosing of diuretics and other and unspecified drugs, medicaments and biological substances
- T50.0 — Poisoning by, adverse effect of and underdosing of mineralocorticoids and their antagonists
- T50.0X — Poisoning by, adverse effect of and underdosing of mineralocorticoids and their antagonists
- T50.0X1 — Poisoning by mineralocorticoids and their antagonists, accidental (unintentional)
- T50.0X1A — Poisoning by mineralocorticoids and their antagonists, accidental (unintentional), initial encounter
- T50.0X1D — Poisoning by mineralocorticoids and their antagonists, accidental (unintentional), subsequent encounter
- T50.0X1S — Poisoning by mineralocorticoids and their antagonists, accidental (unintentional), sequela
- T50.0X2 — Poisoning by mineralocorticoids and their antagonists, intentional self-harm
- T50.0X2A — Poisoning by mineralocorticoids and their antagonists, intentional self-harm, initial encounter
- T50.0X2D — Poisoning by mineralocorticoids and their antagonists, intentional self-harm, subsequent encounter
- T50.0X2S — Poisoning by mineralocorticoids and their antagonists, intentional self-harm, sequela
- T50.0X3 — Poisoning by mineralocorticoids and their antagonists, assault
- T50.0X3A — Poisoning by mineralocorticoids and their antagonists, assault, initial encounter
- T50.0X3D — Poisoning by mineralocorticoids and their antagonists, assault, subsequent encounter
- T50.0X3S — Poisoning by mineralocorticoids and their antagonists, assault, sequela
- T50.0X4 — Poisoning by mineralocorticoids and their antagonists, undetermined
- T50.0X4A — Poisoning by mineralocorticoids and their antagonists, undetermined, initial encounter
- T50.0X4D — Poisoning by mineralocorticoids and their antagonists, undetermined, subsequent encounter
- T50.0X4S — Poisoning by mineralocorticoids and their antagonists, undetermined, sequela
- T50.0X5 — Adverse effect of mineralocorticoids and their antagonists
- T50.0X5A — Adverse effect of mineralocorticoids and their antagonists, initial encounter
- T50.0X5D — Adverse effect of mineralocorticoids and their antagonists, subsequent encounter
- T50.0X5S — Adverse effect of mineralocorticoids and their antagonists, sequela
- T50.0X6 — Underdosing of mineralocorticoids and their antagonists
- T50.0X6A — Underdosing of mineralocorticoids and their antagonists, initial encounter
- T50.0X6D — Underdosing of mineralocorticoids and their antagonists, subsequent encounter
- T50.0X6S — Underdosing of mineralocorticoids and their antagonists, sequela
- T50.1 — Poisoning by, adverse effect of and underdosing of loop [high-ceiling] diuretics
- T50.1X — Poisoning by, adverse effect of and underdosing of loop [high-ceiling] diuretics
- T50.1X1 — Poisoning by loop [high-ceiling] diuretics, accidental (unintentional)
- T50.1X1A — Poisoning by loop [high-ceiling] diuretics, accidental (unintentional), initial encounter
- T50.1X1D — Poisoning by loop [high-ceiling] diuretics, accidental (unintentional), subsequent encounter
- T50.1X1S — Poisoning by loop [high-ceiling] diuretics, accidental (unintentional), sequela
- T50.1X2 — Poisoning by loop [high-ceiling] diuretics, intentional self-harm
- T50.1X2A — Poisoning by loop [high-ceiling] diuretics, intentional self-harm, initial encounter
- T50.1X2D — Poisoning by loop [high-ceiling] diuretics, intentional self-harm, subsequent encounter
- T50.1X2S — Poisoning by loop [high-ceiling] diuretics, intentional self-harm, sequela
- T50.1X3 — Poisoning by loop [high-ceiling] diuretics, assault
- T50.1X3A — Poisoning by loop [high-ceiling] diuretics, assault, initial encounter
- T50.1X3D — Poisoning by loop [high-ceiling] diuretics, assault, subsequent encounter
Associated Substances (33)
Substances from the official ICD-10-CM Table of Drugs and Chemicals that map to this code.
- Amino acids
- Aminoacetic acid (derivatives)
- Antikaluretic
- Calcium
- Caloric agent
- Carbacrylamine (resin)
- Cation exchange resin
- Dextrose
- Dialysis solution (intraperitoneal)
- Electrolyte balance drug
- Electrolytes NEC
- Electrolytic agent NEC
- Fructose
- Galactose
- Glucose
- Glycine
- Hartmann's solution
- Invert sugar
- Lactated potassic saline
- Levulose
- Oral rehydration salts
- Peritoneal dialysis solution
- Polyaminostyrene resins
- Potassic saline injection (lactated)
- Potassium-removing resin
- Potassium-retaining drug
- PotassiumNEC (salts)
- Rehydration salts (oral)
- Replacement solution
- Ringersolution (lactate)
- Sodium-removing resin
- Sucrose
- Travert
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code T49.3X4
Poisoning by emollients, demulcents and protectants, undetermined
ICD Code T54.3X4
Toxic effect of corrosive alkalis and alkali-like substances, undetermined