ICD-10 S11
Non-Billable HeaderOpen wound of neck
About ICD-10-CM S11
ICD-10-CM code S11 represents Open wound of neck. This is a non-billable header code in the Injury, Poisoning, and External Causes chapter (block S11). The 2026 edition of ICD-10-CM S11 became effective on October 1, 2025. Non-billable codes cannot be used as a primary or secondary diagnosis on a claim, use a more specific child code instead.
Coding Tips for S11
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
Injury codes require a 7th character: A (initial encounter, active treatment), D (subsequent, healing/recovery), S (sequela, late effect of original injury). Codes with fewer than 6 characters need the placeholder X to bring them to 6 characters before adding the 7th. Wrong or missing 7th character is the #1 cause of injury claim denials.
Type 2 Excludes
Not included here, the excluded code is not part of S11, but a patient may have both conditions at the same time. Both codes may be coded together when applicable.
- open fracture of vertebra (S12.- with 7th character B)
Coding Notes
Code Also
- any associated:
- spinal cord injury (S14.0, S14.1-)
- wound infection
Seven Chr Note
- The appropriate 7th character is to be added to each code from category S11
Medicare LCD Coverage for S11
Local Coverage Determinations (LCDs) from CMS MACs that list S11 as a covered diagnosis.
This doesn't mean the code isn't covered, it means no MAC has issued a Local Coverage Determination naming this specific code. Coverage may still apply under National Coverage Determinations or general medical-necessity rules.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing S11.
2 Cigna
1 Humana
CPT Codes Commonly Billed with S11
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Codes Adjacent To S11
Other codes in section S10-S19 (Injuries to the neck).
ICD-10 S11, Billing FAQ
Is ICD-10 code S11 billable? +
No, S11 is a non-billable header code. Use a more specific child code from block S11 when submitting claims.
What codes are Type 2 Excludes for S11? +
Type 2 Excludes (may be coded together when both conditions exist): open fracture of vertebra (S12.- with 7th character B)
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on June 1, 2026.
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