T63.064A vs T63.064D
T63.064A (Toxic effect of venom of other North and South American snake, undetermined, initial encounter) compared with T63.064D (Toxic effect of venom of other North and South American snake, undetermined, subsequent encounter), from the official CMS tabular data. T63.064A and T63.064D code the same injury at a different phase of treatment.
Can these codes be reported together?
Same injury, other encounter phase. T63.064A and T63.064D code the same injury at a different phase of treatment, set by the 7th character.
The 7th character records the type of care given at the encounter being coded (ICD-10-CM Official Guidelines, Section I.C.19.a), so one encounter takes one of these, not both.
Side by side
| T63.064AToxic effect of venom of other North and South American snake, undetermined, initial encounter | T63.064DToxic effect of venom of other North and South American snake, undetermined, subsequent encounter | |
|---|---|---|
| Billing status | Billable | Billable |
| 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 other North and South American snake, undetermined, initial encounter is a billable ICD-10-CM diagnosis code (T63.064A). | Toxic effect of venom of other North and South American snake, undetermined, subsequent encounter is a billable ICD-10-CM diagnosis code (T63.064D). |
| 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