S61.101A vs S61.109A
S61.101A (Unspecified open wound of right thumb with damage to nail, initial encounter) compared with S61.109A (Unspecified open wound of unspecified thumb with damage to nail, initial encounter), from the official CMS tabular data. S61.101A and S61.109A code the same condition on opposite sides.
Can these codes be reported together?
Same condition, opposite side. S61.101A and S61.109A 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.
Side by side
| S61.101AUnspecified open wound of right thumb with damage to nail, initial encounter | S61.109AUnspecified open wound of unspecified thumb with damage to nail, initial 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 | Unspecified open wound of right thumb with damage to nail, initial encounter is a billable ICD-10-CM diagnosis code (S61.101A). | Unspecified open wound of unspecified thumb with damage to nail, initial encounter is a billable ICD-10-CM diagnosis code (S61.109A). |
| 7th character | The appropriate 7th character is to be added to each code from category S61 | The appropriate 7th character is to be added to each code from category S61 |
Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources