Billable / Specific Code
ICD-10-CM S81.809 is the diagnosis code for Unspecified open wound, unspecified lower leg. This code falls under the section "Injuries to the knee and lower leg" within Chapter 19 — Injury, poisoning and certain other consequences of external causes (S00-T88). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where S81.809 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, S81.809 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
S81.809 is the ICD-10-CM diagnosis code for "Unspecified open wound, unspecified lower leg". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of S81.809 is S81.80 ("Unspecified open wound of lower leg"). S81.809 provides a more specific classification within this category.
S81.809 is located in Section S80-S89 — "Injuries to the knee and lower leg" within Chapter 19 of the ICD-10-CM Tabular List.
Use S81.809 when the patients documented diagnosis matches "Unspecified open wound, unspecified lower leg" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Unspecified open wound, unspecified lower leg is S81.809.
Yes, S81.809 can be used as a primary diagnosis code since it is billable and specific.
S81.809 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, S81.809 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.