Billable / Specific Code
ICD-10-CM S23.420 is the diagnosis code for Sprain of sternoclavicular (joint) (ligament). This code falls under the section "Injuries to the thorax" 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 S23.420 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, S23.420 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
S23.420 is the ICD-10-CM diagnosis code for "Sprain of sternoclavicular (joint) (ligament)". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of S23.420 is S23.42 ("Sprain of sternum"). S23.420 provides a more specific classification within this category.
S23.420 is located in Section S20-S29 — "Injuries to the thorax" within Chapter 19 of the ICD-10-CM Tabular List.
Use S23.420 when the patients documented diagnosis matches "Sprain of sternoclavicular (joint) (ligament)" 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 Sprain of sternoclavicular (joint) (ligament) is S23.420.
Yes, S23.420 can be used as a primary diagnosis code since it is billable and specific.
S23.420 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, S23.420 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.