S64.4 is the authoritative medical code for Injury of digital nerve of other and unspecified finger. This classification is used in medical billing and clinical recording to specify the clinical criteria for injury of digital nerve of other and unspecified finger (ICD-10-CM S64.4), 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
Injury of digital nerve of other and unspecified finger is a non-billable ICD-10-CM category code S64.4. A more specific billable subcode must be selected for claims submission. Excludes2 (not included here): burns and corrosions T20-T32; frostbite T33-T34; insect bite or sting, venomous T63.4. Code also: any associated open wound S61.-. 7th character: The appropriate 7th character is to be added to each code from category S64.
Official Tabular Instructional Notes
Sequencing, inclusion, and exclusion notes published for S64.4 in the official ICD-10-CM tabular list.
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 open wound S61.-
Frequently Asked Questions (FAQ) & Clinical Guidance
Can S64.4 be billed directly?
No. S64.4 (Injury of digital nerve of other and unspecified finger) is a non-billable ICD-10-CM category code. A more specific billable subcode must be selected based on clinical documentation.
Does S64.4 require a 7th character?
Yes. The appropriate 7th character is to be added to each code from category S64.
Can S64.4 be reported alongside related conditions?
Per Excludes2 instructions, S64.4 and the following may both be reported when both are present: burns and corrosions (T20-T32); frostbite (T33-T34); insect bite or sting, venomous (T63.4).
Codes in This Family (36)
Official ICD-10-CM classifications in the same code family as S64.4, with their registry titles.
- S64.490 — Injury of digital nerve of right index finger
- S64.490A — Injury of digital nerve of right index finger, initial encounter
- S64.490D — Injury of digital nerve of right index finger, subsequent encounter
- S64.490S — Injury of digital nerve of right index finger, sequela
- S64.491 — Injury of digital nerve of left index finger
- S64.491A — Injury of digital nerve of left index finger, initial encounter
- S64.491D — Injury of digital nerve of left index finger, subsequent encounter
- S64.491S — Injury of digital nerve of left index finger, sequela
- S64.492 — Injury of digital nerve of right middle finger
- S64.492A — Injury of digital nerve of right middle finger, initial encounter
- S64.492D — Injury of digital nerve of right middle finger, subsequent encounter
- S64.492S — Injury of digital nerve of right middle finger, sequela
- S64.493 — Injury of digital nerve of left middle finger
- S64.493A — Injury of digital nerve of left middle finger, initial encounter
- S64.493D — Injury of digital nerve of left middle finger, subsequent encounter
- S64.493S — Injury of digital nerve of left middle finger, sequela
- S64.494 — Injury of digital nerve of right ring finger
- S64.494A — Injury of digital nerve of right ring finger, initial encounter
- S64.494D — Injury of digital nerve of right ring finger, subsequent encounter
- S64.494S — Injury of digital nerve of right ring finger, sequela
- S64.495 — Injury of digital nerve of left ring finger
- S64.495A — Injury of digital nerve of left ring finger, initial encounter
- S64.495D — Injury of digital nerve of left ring finger, subsequent encounter
- S64.495S — Injury of digital nerve of left ring finger, sequela
- S64.496 — Injury of digital nerve of right little finger
- S64.496A — Injury of digital nerve of right little finger, initial encounter
- S64.496D — Injury of digital nerve of right little finger, subsequent encounter
- S64.496S — Injury of digital nerve of right little finger, sequela
- S64.497 — Injury of digital nerve of left little finger
- S64.497A — Injury of digital nerve of left little finger, initial encounter
- S64.497D — Injury of digital nerve of left little finger, subsequent encounter
- S64.497S — Injury of digital nerve of left little finger, sequela
- S64.498 — Injury of digital nerve of other finger
- S64.498A — Injury of digital nerve of other finger, initial encounter
- S64.498D — Injury of digital nerve of other finger, subsequent encounter
- S64.498S — Injury of digital nerve of other finger, sequela
Related Codes & Numerical Sequence (Crawl Map)
Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:
ICD Code S63.4
Traumatic rupture of ligament of finger at metacarpophalangeal and interphalangeal joint(s)
ICD Code S66.4
Injury of intrinsic muscle, fascia and tendon of thumb at wrist and hand level