Billable / Specific Code
ICD-10-CM S80.842 is the diagnosis code for External constriction, left 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 S80.842 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, S80.842 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
S80.842 is the ICD-10-CM diagnosis code for "External constriction, left lower leg". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of S80.842 is S80.84 ("External constriction of lower leg"). S80.842 provides a more specific classification within this category.
S80.842 is located in Section S80-S89 — "Injuries to the knee and lower leg" within Chapter 19 of the ICD-10-CM Tabular List.
Use S80.842 when the patients documented diagnosis matches "External constriction, left 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 External constriction, left lower leg is S80.842.
Yes, S80.842 can be used as a primary diagnosis code since it is billable and specific.
S80.842 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, S80.842 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.