S60.420S (Blister (nonthermal) of right index finger, sequela) compared with S60.421S (Blister (nonthermal) of left index finger, sequela), from the official CMS tabular data. S60.420S and S60.421S code the same condition on opposite sides.
Same condition; these differ only in which side is documented.
These codes share a category and title and differ only in the side affected. The documentation decides which applies, and a bilateral code is reported only where the code set provides one.
Source: ICD-10-CM tabular list (laterality variant derived from the code title)
Same condition, opposite side. S60.420S and S60.421S name the same condition on opposite sides of the body.
Same category and title, differing only in which side is affected — the documentation decides which one applies, and a bilateral code is reported only where the code set provides one.
| S60.420SBlister (nonthermal) of right index finger, sequela | S60.421SBlister (nonthermal) of left index finger, 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 | Blister (nonthermal) of right index finger, sequela is a billable ICD-10-CM diagnosis code (S60.420S). | Blister (nonthermal) of left index finger, sequela is a billable ICD-10-CM diagnosis code (S60.421S). |
| 7th character | The appropriate 7th character is to be added to each code from category S60 | The appropriate 7th character is to be added to each code from category S60 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources