Non-Billable / Non-Specific Code
ICD-10-CM S56.01 is the diagnosis code for Strain of flexor muscle, fascia and tendon of 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 non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. 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 S56.01 sits in the ICD-10-CM classification helps ensure proper coding:
No, S56.01 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
S56.01 is the ICD-10-CM diagnosis code for "Strain of flexor muscle, fascia and tendon of 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 S56.01 is S56.0 ("Injury of flexor muscle, fascia and tendon of thumb at forearm level"). S56.01 provides a more specific classification within this category.
S56.01 is located in Section S50-S59 — "Injuries to the elbow and forearm" within Chapter 19 of the ICD-10-CM Tabular List.
S56.01 has 3 sub-code(s) that provide more specific detail: S56.011, S56.012, S56.019.
Use S56.01 when the patients documented diagnosis matches "Strain of flexor muscle, fascia and tendon of 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 Strain of flexor muscle, fascia and tendon of thumb at forearm level is S56.01.
No, S56.01 is non-billable. Use a more specific sub-code for primary diagnosis billing.
S56.01 is in Chapter 19 of the ICD-10-CM Tabular List.
Yes, S56.01 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.