S84 — Injury of nerves at lower leg level
Is S84 billable?
No — S84 is a non-billable header code. S84 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 45 billable codes beneath S84.
Billable codes under this header
- S84.00XAInjury of tibial nerve at lower leg level, unspecified leg, initial encounter
- S84.00XDInjury of tibial nerve at lower leg level, unspecified leg, subsequent encounter
- S84.00XSInjury of tibial nerve at lower leg level, unspecified leg, sequela
- S84.01XAInjury of tibial nerve at lower leg level, right leg, initial encounter
- S84.01XDInjury of tibial nerve at lower leg level, right leg, subsequent encounter
- S84.01XSInjury of tibial nerve at lower leg level, right leg, sequela
- S84.02XAInjury of tibial nerve at lower leg level, left leg, initial encounter
- S84.02XDInjury of tibial nerve at lower leg level, left leg, subsequent encounter
- S84.02XSInjury of tibial nerve at lower leg level, left leg, sequela
- S84.10XAInjury of peroneal nerve at lower leg level, unspecified leg, initial encounter
- S84.10XDInjury of peroneal nerve at lower leg level, unspecified leg, subsequent encounter
- S84.10XSInjury of peroneal nerve at lower leg level, unspecified leg, sequela
- S84.11XAInjury of peroneal nerve at lower leg level, right leg, initial encounter
- S84.11XDInjury of peroneal nerve at lower leg level, right leg, subsequent encounter
- S84.11XSInjury of peroneal nerve at lower leg level, right leg, sequela
- S84.12XAInjury of peroneal nerve at lower leg level, left leg, initial encounter
- S84.12XDInjury of peroneal nerve at lower leg level, left leg, subsequent encounter
- S84.12XSInjury of peroneal nerve at lower leg level, left leg, sequela
- S84.20XAInjury of cutaneous sensory nerve at lower leg level, unspecified leg, initial encounter
- S84.20XDInjury of cutaneous sensory nerve at lower leg level, unspecified leg, subsequent encounter
- S84.20XSInjury of cutaneous sensory nerve at lower leg level, unspecified leg, sequela
- S84.21XAInjury of cutaneous sensory nerve at lower leg level, right leg, initial encounter
- S84.21XDInjury of cutaneous sensory nerve at lower leg level, right leg, subsequent encounter
- S84.21XSInjury of cutaneous sensory nerve at lower leg level, right leg, sequela
- S84.22XAInjury of cutaneous sensory nerve at lower leg level, left leg, initial encounter
- S84.22XDInjury of cutaneous sensory nerve at lower leg level, left leg, subsequent encounter
- S84.22XSInjury of cutaneous sensory nerve at lower leg level, left leg, sequela
- S84.90XAInjury of unspecified nerve at lower leg level, unspecified leg, initial encounter
- S84.90XDInjury of unspecified nerve at lower leg level, unspecified leg, subsequent encounter
- S84.90XSInjury of unspecified nerve at lower leg level, unspecified leg, sequela
- S84.91XAInjury of unspecified nerve at lower leg level, right leg, initial encounter
- S84.91XDInjury of unspecified nerve at lower leg level, right leg, subsequent encounter
- S84.91XSInjury of unspecified nerve at lower leg level, right leg, sequela
- S84.92XAInjury of unspecified nerve at lower leg level, left leg, initial encounter
- S84.92XDInjury of unspecified nerve at lower leg level, left leg, subsequent encounter
- S84.92XSInjury of unspecified nerve at lower leg level, left leg, sequela
- S84.801AInjury of other nerves at lower leg level, right leg, initial encounter
- S84.801DInjury of other nerves at lower leg level, right leg, subsequent encounter
- S84.801SInjury of other nerves at lower leg level, right leg, sequela
- S84.802AInjury of other nerves at lower leg level, left leg, initial encounter
- S84.802DInjury of other nerves at lower leg level, left leg, subsequent encounter
- S84.802SInjury of other nerves at lower leg level, left leg, sequela
- S84.809AInjury of other nerves at lower leg level, unspecified leg, initial encounter
- S84.809DInjury of other nerves at lower leg level, unspecified leg, subsequent encounter
- S84.809SInjury of other nerves at lower leg level, unspecified leg, sequela
S84 at a glance
| Code | S84 |
|---|---|
| Description | Injury of nerves at lower leg level |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes2 — not included here
The conditions below are not part of S84, but a patient may have both at the same time. When documentation supports it, S84 and the excluded code may both be reported.
- injury of nerves at ankle and foot level (S94.-)
Code also
Two codes may be needed to describe the condition fully. Whether S84 is sequenced first depends on the reason for the encounter.
- any associated open wound (S81.-)
Use additional code — inherited from Chapter 19
Report an additional code alongside S84 to fully describe the condition. S84 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, but a patient may have both at the same time. When documentation supports it, S84 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S84, but a patient may have both at the same time. When documentation supports it, S84 and the excluded code may both be reported.
What codes fall under S84? (5)
- S84.0Injury of tibial nerve at lower leg levelnot billable
- S84.1Injury of peroneal nerve at lower leg levelnot billable
- S84.2Injury of cutaneous sensory nerve at lower leg levelnot billable
- S84.8Injury of other nerves at lower leg levelnot billable
- S84.9Injury of unspecified nerve at lower leg levelnot billable
How long has S84 existed?
S84 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.