S61.00 is the authoritative medical code for Unspecified open wound of thumb without damage to nail. This classification is used in medical billing and clinical recording to specify the clinical criteria for unspecified open wound of thumb without damage to nail (ICD-10-CM S61.00), ensuring healthcare documentation aligns with 2026 federal coding standards.
Billing Status: NO. This is a clinician non-billable / parent hierarchy grouping in the ICD-10-CM system.
Official Registry Overview & Definition
Unspecified open wound of thumb without damage to nail is a non-billable ICD-10-CM category code S61.00. A more specific billable subcode must be selected for claims submission. Excludes1 (not coded here): open wound of thumb with damage to nail S61.1-; open fracture of wrist, hand and finger (S62.- with 7th character B); traumatic amputation of wrist and hand S68.-. Excludes2 (not included here): burns and corrosions T20-T32; frostbite T33-T34; insect bite or sting, venomous T63.4. Code also: any associated wound infection. 7th character: The appropriate 7th character is to be added to each code from category S61.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S61.00 in the official ICD-10-CM tabular list.
Excludes1 — Not Coded Here
Conditions that can never be reported with this code; the two are mutually exclusive.
- open wound of thumb with damage to nail S61.1-
- open fracture of wrist, hand and finger (S62.- with 7th character B)
- traumatic amputation of wrist and hand S68.-
Excludes2 — Not Included Here
Conditions not covered by this code, but which may be reported alongside it when both are present.
- burns and corrosions T20-T32
- frostbite T33-T34
- insect bite or sting, venomous T63.4
Code Also
Additional codes that may be required to fully describe the encounter.
- any associated wound infection
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S61.00 be billed directly?
No. S61.00 (Unspecified open wound of thumb without damage to nail) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S61.00 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S61.
What can't be coded together with S61.00?
Per official ICD-10-CM Excludes1 instructions, S61.00 must not be reported together with: open wound of thumb with damage to nail (S61.1-); open fracture of wrist, hand and finger (S62.- with 7th character B); traumatic amputation of wrist and hand (S68.-).
Can S61.00 be reported alongside related conditions?
Per official ICD-10-CM Excludes2 instructions, S61.00 and the following are not considered part of each other and may both be reported when both conditions are present: burns and corrosions (T20-T32); frostbite (T33-T34); insect bite or sting, venomous (T63.4).
Nearest Codes in This Family
Official ICD-10-CM classifications closest to S61.00 in its code family, with their registry titles.
- S61 — Open wound of wrist, hand and fingers
- S61.0 — Open wound of thumb without damage to nail
- S61.001 — Unspecified open wound of right thumb without damage to nail
- S61.001A — Unspecified open wound of right thumb without damage to nail, initial encounter
- S61.001D — Unspecified open wound of right thumb without damage to nail, subsequent encounter
- S61.001S — Unspecified open wound of right thumb without damage to nail, sequela
- S61.002 — Unspecified open wound of left thumb without damage to nail
- S61.002A — Unspecified open wound of left thumb without damage to nail, initial encounter
- S61.002D — Unspecified open wound of left thumb without damage to nail, subsequent encounter
- S61.002S — Unspecified open wound of left thumb without damage to nail, sequela
View all 40 codes in the S61 family