S84.801A — Injury of other nerves at lower leg level, right leg, initial encounter
Is S84.801A billable?
Yes — S84.801A is billable for FY2027. S84.801A is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S84.801A may be submitted for encounters from October 1, 2026 through September 30, 2027.
S84.801A at a glance
| Code | S84.801A |
|---|---|
| Description | Injury of other nerves at lower leg level, right leg, 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 S84.801A?
In S84.801A, the 7th character A means initial encounter. The 7th character is required for S84.801A to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S84.801A group to?
S84.801A 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
Use additional code — inherited from Chapter 19
Report an additional code alongside S84.801A to fully describe the condition. S84.801A 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 S84.801A, but a patient may have both at the same time. When documentation supports it, S84.801A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S84.801A, but a patient may have both at the same time. When documentation supports it, S84.801A and the excluded code may both be reported.
Excludes2 — not included here — inherited from S84
The conditions below are not part of S84.801A, but a patient may have both at the same time. When documentation supports it, S84.801A and the excluded code may both be reported.
- injury of nerves at ankle and foot level (S94.-)
Code also — inherited from S84
Two codes may be needed to describe the condition fully. Whether S84.801A is sequenced first depends on the reason for the encounter.
- any associated open wound (S81.-)
How long has S84.801A existed?
S84.801A 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.