S81.859 — Open bite, unspecified lower leg
Is S81.859 billable?
No — S81.859 is a non-billable header code. S81.859 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 3 billable codes beneath S81.859.
S81.859 at a glance
| Code | S81.859 |
|---|---|
| Description | Open bite, unspecified lower leg |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
How is S81.859 listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S81.85, the nearest indexed parent of S81.859. Use them to find the family, then select the specific code.
- Bite › leg (s) (animal) (human)
Excludes1 — never code together — inherited from S81
The conditions below can never be reported together with S81.859 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Excludes1 — never code together — inherited from S81.85
The conditions below can never be reported together with S81.859 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 19
Report an additional code alongside S81.859 to fully describe the condition. S81.859 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 S81.859, but a patient may have both at the same time. When documentation supports it, S81.859 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S80-S89
The conditions below are not part of S81.859, but a patient may have both at the same time. When documentation supports it, S81.859 and the excluded code may both be reported.
Excludes2 — not included here — inherited from S81
The conditions below are not part of S81.859, but a patient may have both at the same time. When documentation supports it, S81.859 and the excluded code may both be reported.
- open wound of ankle and foot (S91.-)
Code also — inherited from S81
Two codes may be needed to describe the condition fully. Whether S81.859 is sequenced first depends on the reason for the encounter.
- any associated wound infection
What codes fall under S81.859? (3)
How long has S81.859 existed?
S81.859 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.