T63.122 (Toxic effect of venom of other venomous lizard, intentional self-harm) compared with T63.123 (Toxic effect of venom of other venomous lizard, assault), from the official CMS tabular data. T63.122 and T63.123 code the same substance (Lizard) with a different intent. MedCoder-derived
Same substance, different circumstance of exposure.
Same substance — assault (Lizard)
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. T63.122 and T63.123 code the same substance (Lizard) with a different circumstance of exposure.
From the CMS/CDC 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.
| T63.122Toxic effect of venom of other venomous lizard, intentional self-harm | T63.123Toxic effect of venom of other venomous lizard, assault | |
|---|---|---|
| Billing status | Non-billable header | Non-billable header |
| Classification | S00-T88 — Injury, poisoning and certain other consequences of external causes | S00-T88 — Injury, poisoning and certain other consequences of external causes |
| Definition | Toxic effect of venom of other venomous lizard, intentional self-harm is a non-billable ICD-10-CM category code (T63.122). | Toxic effect of venom of other venomous lizard, assault is a non-billable ICD-10-CM category code (T63.123). |
| 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(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) personal history of foreign body fully removed (Z87.821) | code(s): for all associated manifestations of toxic effect, such as: respiratory conditions due to external agents (J60-J70) personal history of foreign body fully removed (Z87.821) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources