T38.2X2 is the authoritative medical code for Poisoning by antithyroid drugs, intentional self-harm. This classification is used in medical billing and clinical recording to specify the clinical criteria for poisoning by antithyroid drugs, intentional self-harm (ICD-10-CM T38.2X2), 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 antithyroid drugs, intentional self-harm is a non-billable ICD-10-CM category code T38.2X2. 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): mineralocorticoids and their antagonists T50.0-; oxytocic hormones T48.0-; parathyroid hormones and derivatives T50.9-; 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 T38.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for T38.2X2 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.
- mineralocorticoids and their antagonists T50.0-
- oxytocic hormones T48.0-
- parathyroid hormones and derivatives T50.9-
- 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 T38.2X2 be billed directly?
No. T38.2X2 (Poisoning by antithyroid drugs, intentional self-harm) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does T38.2X2 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category T38.
What can't be coded together with T38.2X2?
Per Excludes1 instructions, T38.2X2 must not be reported with: mineralocorticoids and their antagonists (T50.0-); oxytocic hormones (T48.0-); parathyroid hormones and derivatives (T50.9-); toxic reaction to local anesthesia in pregnancy (O29.3-).
Can T38.2X2 be reported alongside related conditions?
Per Excludes2 instructions, T38.2X2 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 T38.2X2 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 T38.2X2, with their registry titles.
- T38 — Poisoning by, adverse effect of and underdosing of hormones and their synthetic substitutes and antagonists, not elsewhere classified
- T38.0 — Poisoning by, adverse effect of and underdosing of glucocorticoids and synthetic analogues
- T38.0X — Poisoning by, adverse effect of and underdosing of glucocorticoids and synthetic analogues
- T38.0X1 — Poisoning by glucocorticoids and synthetic analogues, accidental (unintentional)
- T38.0X1A — Poisoning by glucocorticoids and synthetic analogues, accidental (unintentional), initial encounter
- T38.0X1D — Poisoning by glucocorticoids and synthetic analogues, accidental (unintentional), subsequent encounter
- T38.0X1S — Poisoning by glucocorticoids and synthetic analogues, accidental (unintentional), sequela
- T38.0X2 — Poisoning by glucocorticoids and synthetic analogues, intentional self-harm
- T38.0X2A — Poisoning by glucocorticoids and synthetic analogues, intentional self-harm, initial encounter
- T38.0X2D — Poisoning by glucocorticoids and synthetic analogues, intentional self-harm, subsequent encounter
- T38.0X2S — Poisoning by glucocorticoids and synthetic analogues, intentional self-harm, sequela
- T38.0X3 — Poisoning by glucocorticoids and synthetic analogues, assault
- T38.0X3A — Poisoning by glucocorticoids and synthetic analogues, assault, initial encounter
- T38.0X3D — Poisoning by glucocorticoids and synthetic analogues, assault, subsequent encounter
- T38.0X3S — Poisoning by glucocorticoids and synthetic analogues, assault, sequela
- T38.0X4 — Poisoning by glucocorticoids and synthetic analogues, undetermined
- T38.0X4A — Poisoning by glucocorticoids and synthetic analogues, undetermined, initial encounter
- T38.0X4D — Poisoning by glucocorticoids and synthetic analogues, undetermined, subsequent encounter
- T38.0X4S — Poisoning by glucocorticoids and synthetic analogues, undetermined, sequela
- T38.0X5 — Adverse effect of glucocorticoids and synthetic analogues
- T38.0X5A — Adverse effect of glucocorticoids and synthetic analogues, initial encounter
- T38.0X5D — Adverse effect of glucocorticoids and synthetic analogues, subsequent encounter
- T38.0X5S — Adverse effect of glucocorticoids and synthetic analogues, sequela
- T38.0X6 — Underdosing of glucocorticoids and synthetic analogues
- T38.0X6A — Underdosing of glucocorticoids and synthetic analogues, initial encounter
- T38.0X6D — Underdosing of glucocorticoids and synthetic analogues, subsequent encounter
- T38.0X6S — Underdosing of glucocorticoids and synthetic analogues, sequela
- T38.1 — Poisoning by, adverse effect of and underdosing of thyroid hormones and substitutes
- T38.1X — Poisoning by, adverse effect of and underdosing of thyroid hormones and substitutes
- T38.1X1 — Poisoning by thyroid hormones and substitutes, accidental (unintentional)
- T38.1X1A — Poisoning by thyroid hormones and substitutes, accidental (unintentional), initial encounter
- T38.1X1D — Poisoning by thyroid hormones and substitutes, accidental (unintentional), subsequent encounter
- T38.1X1S — Poisoning by thyroid hormones and substitutes, accidental (unintentional), sequela
- T38.1X2 — Poisoning by thyroid hormones and substitutes, intentional self-harm
- T38.1X2A — Poisoning by thyroid hormones and substitutes, intentional self-harm, initial encounter
- T38.1X2D — Poisoning by thyroid hormones and substitutes, intentional self-harm, subsequent encounter
- T38.1X2S — Poisoning by thyroid hormones and substitutes, intentional self-harm, sequela
- T38.1X3 — Poisoning by thyroid hormones and substitutes, assault
- T38.1X3A — Poisoning by thyroid hormones and substitutes, assault, initial encounter
- T38.1X3D — Poisoning by thyroid hormones and substitutes, assault, subsequent encounter
Associated Substances (14)
Substances from the official ICD-10-CM Table of Drugs and Chemicals that map to this code.
- Antithyroid drug NEC
- Benzylthiouracil
- Carbimazole
- Diiodotyrosine
- Iothiouracil
- Methiacil
- Methimazole
- Methylthiouracil
- Propylthiouracil
- Tapazole
- Thiamazole
- Thiocarbamide
- Thiouracil (benzyl) (methyl) (propyl)
- Thiourea
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 T37.2X2
Poisoning by antimalarials and drugs acting on other blood protozoa, intentional self-harm
ICD Code T42.2X2
Poisoning by succinimides and oxazolidinediones, intentional self-harm