Billable / Specific Code
ICD-10-CM S56.321 is the diagnosis code for Laceration of extensor or abductor muscles, fascia and tendons of right thumb at forearm level. This code falls under the section "Injuries to the elbow and forearm" 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 S56.321 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, S56.321 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
S56.321 is the ICD-10-CM diagnosis code for "Laceration of extensor or abductor muscles, fascia and tendons of right thumb at forearm level". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of S56.321 is S56.32 ("Laceration of extensor or abductor muscles, fascia and tendons of thumb at forearm level"). S56.321 provides a more specific classification within this category.
S56.321 is located in Section S50-S59 — "Injuries to the elbow and forearm" within Chapter 19 of the ICD-10-CM Tabular List.
Use S56.321 when the patients documented diagnosis matches "Laceration of extensor or abductor muscles, fascia and tendons of right thumb at forearm level" 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 Laceration of extensor or abductor muscles, fascia and tendons of right thumb at forearm level is S56.321.
Yes, S56.321 can be used as a primary diagnosis code since it is billable and specific.
S56.321 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, S56.321 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.