1. Home
2. ICD-10 Codes
3. Chapter - S00-T88
4. Section - T36-T50
5. Category - T43
6. T43.21

T43.21 - Poisoning by, adverse effect of and underdosing of selective serotonin and norepinephrine reuptake inhibitors

• Applicable to Poisoning by, adverse effect of and underdosing of selective serotonin and norepinephrine reuptake inhibitors
• The 2025 edition of ICD10-CM T43.21 became effective on October 1, 2024.
• This is the American ICD10-CM version of T43.21 - other international versions of ICD10 T43.21 may differ.
• T43.21 is a Non-Billable / Non-Specific ICD10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• T43.21 Code should not be used for billing or reimbursement purposes as there are multiple ICD-10 CM codes below it that contain a greater level of detail.

• Poisoning by, adverse effect of and underdosing of SSNRI antidepressants

The following codes above T43.21 contain annotation back-references that may be applicable to T43.21:

• Chapter: S00-T88 - Injury, poisoning and certain other consequences of external causes
• Section: T36-T50 - Poisoning by, adverse effects of and underdosing of drugs, medicaments and biological substances
• Category: T43 - Poisoning by, adverse effect of and underdosing of psychotropic drugs, not elsewhere classified

Browse other similar CM codes:

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.