S56.522

⚠ Non-billable (Header)

Laceration of other extensor muscle, fascia and tendon at forearm level, left arm

Injury, poisoning and certain other consequences of external causes (S00-T88)

⚠️ This is a category header code — not billable. Use a more specific child code below.

Check This Code

⚠️ Excludes2

inherited

Rules inherited from parent codes.

S56

• injury of muscle, fascia and tendon at or below wrist (S66.-)
• sprain of joints and ligaments of elbow (S53.4-)

Child Codes (3)

S56.522ALaceration of other extensor muscle, fascia and tendon at forearm level, left arm, initial encounter✓ Billable S56.522DLaceration of other extensor muscle, fascia and tendon at forearm level, left arm, subsequent encounter✓ Billable S56.522SLaceration of other extensor muscle, fascia and tendon at forearm level, left arm, sequela✓ Billable

Clinical Description

ICD-10-CM code S56.522 represents laceration of other extensor muscle, fascia and tendon at forearm level, left arm. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 3 more specific child codes under S56.522.

Frequently Asked Questions

What is ICD-10 code S56.522?

ICD-10-CM code S56.522 is "Laceration of other extensor muscle, fascia and tendon at forearm level, left arm". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is S56.522 a billable ICD-10 code?

No, S56.522 is a non-billable header code. A more specific child code must be used for billing.

Can S56.522 be coded with other codes?

S56.522 has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in S56.52

Other codes in the same category that may be relevant for differential coding:

S56.521Laceration of other extensor muscle, fascia and tendon at forearm level, right arm S56.529Laceration of other extensor muscle, fascia and tendon at forearm level, unspecified arm

🧪 Validate Combinations

Add S56.522 to the Excludes Checker to validate against your full code list.

Open in Checker →

Code Information

CodeS56.522

BillableNo — Header code

ParentS56.52

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes10 rule(s)

Excludes22 note(s)

Child codes3

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)