T63.441 (Toxic effect of venom of bees, accidental (unintentional)) compared with T63.444 (Toxic effect of venom of bees, undetermined), from the official CMS tabular data. T63.441 and T63.444 code the same substance (Bee) with a different intent.
Same substance, different circumstance of exposure.
Same substance — undetermined intent (Bee)
Accidental poisoning, intentional self-harm, assault, undetermined intent, adverse effect and underdosing are mutually exclusive columns — exactly one applies to a given encounter.
Source: CMS Table of Drugs and Chemicals
Same substance, different intent. T63.441 and T63.444 code the same substance (Bee) with a different circumstance of exposure.
From the CMS Table of Drugs and Chemicals: accidental poisoning, intentional self-harm, assault, undetermined intent, adverse effect and underdosing are mutually exclusive columns — only one of them applies to a given encounter.
| T63.441Toxic effect of venom of bees, accidental (unintentional) | T63.444Toxic effect of venom of bees, undetermined | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) | S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88) |
| Definition | Toxic effect of venom of bees, accidental (unintentional) is a non-billable ICD-10-CM category code (T63.441). | Toxic effect of venom of bees, undetermined is a non-billable ICD-10-CM category code (T63.444). |
| 7th character | The appropriate 7th character is to be added to each code from category T63 | The appropriate 7th character is to be added to each code from category T63 |
| Includes | bite or touch of venomous animal pricked or stuck by thorn or leaf | bite or touch of venomous animal pricked or stuck by thorn or leaf |
| Use additional code | code, if applicable, for anaphylactic shock (T78.2) code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) | code, if applicable, for anaphylactic shock (T78.2) code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources