S64.490A — Injury of digital nerve of right index finger, initial encounter
Is S64.490A billable?
Yes — S64.490A is billable for FY2027. S64.490A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S64.490A may be submitted for encounters from October 1, 2026 through September 30, 2027.
S64.490A at a glance
| Code | S64.490A |
|---|---|
| Description | Injury of digital nerve of right index finger, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in S64.490A?
In S64.490A, the 7th character A means initial encounter. The 7th character is required for S64.490A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S64.490A group to?
S64.490A sits in MDC 01 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 073Cranial and Peripheral Nerve Disorders with MCCmedical
- 074Cranial and Peripheral Nerve Disorders without MCCmedical
How is S64.490A listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S64.49, the nearest indexed parent of S64.490A. Use them to find the family, then select the specific code.
- Injury › nerve NEC › digital › finger › index
- Injury › nerve NEC › digital › finger › little
- Injury › nerve NEC › digital › finger › middle
- Injury › nerve NEC › digital › finger › ring
Use additional code — inherited from Chapter 19
Report an additional code alongside S64.490A to fully describe the condition. S64.490A is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S64.490A, but a patient may have both at the same time. When documentation supports it, S64.490A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S60-S69
The conditions below are not part of S64.490A, but a patient may have both at the same time. When documentation supports it, S64.490A and the excluded code may both be reported.
Code also — inherited from S64
Two codes may be needed to describe the condition fully. Whether S64.490A is sequenced first depends on the reason for the encounter.
- any associated open wound (S61.-)
How long has S64.490A existed?
S64.490A has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.