T85.860A vs T85.860S
T85.860A (Thrombosis due to nervous system prosthetic devices, implants and grafts, initial encounter) compared with T85.860S (Thrombosis due to nervous system prosthetic devices, implants and grafts, sequela), from the official CMS tabular data. T85.860A and T85.860S code the same injury at a different phase of treatment.
Can these codes be reported together?
Same injury, other encounter phase. T85.860A and T85.860S 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
| T85.860AThrombosis due to nervous system prosthetic devices, implants and grafts, initial encounter | T85.860SThrombosis due to nervous system prosthetic devices, implants and grafts, sequela | |
|---|---|---|
| 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 | Thrombosis due to nervous system prosthetic devices, implants and grafts, initial encounter is a billable ICD-10-CM diagnosis code (T85.860A). | Thrombosis due to nervous system prosthetic devices, implants and grafts, sequela is a billable ICD-10-CM diagnosis code (T85.860S). |
| 7th character | The appropriate 7th character is to be added to each code from category T85 | The appropriate 7th character is to be added to each code from category T85 |
| Use additional code | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) code(s) to identify the specified condition resulting from the complication code to identify devices involved and details of circumstances (Y62-Y82) | code for adverse effect, if applicable, to identify drug (T36-T50 with fifth or sixth character 5) code(s) to identify the specified condition resulting from the complication code to identify devices involved and details of circumstances (Y62-Y82) |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources