T22.499A

✓ Billable

Corrosion of unspecified degree of multiple sites of unspecified shoulder and upper limb, except wrist and hand, initial encounter

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

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⚠️ Excludes2

inherited

Rules inherited from parent codes.

T22

• burn and corrosion of interscapular region (T21.-)
• burn and corrosion of wrist and hand (T23.-)

📋 Code Instructions

inherited

T22.4

• external cause code to identify place (Y92)
• Code first: (T51-T65) to identify chemical and intent

Clinical Description

ICD-10-CM code T22.499A represents corrosion of unspecified degree of multiple sites of unspecified shoulder and upper limb, except wrist and hand, initial encounter. This code falls under the Injury, poisoning and certain other consequences of external causes (S00-T88) classification. It is a billable/specific code valid for HIPAA-covered transactions as of October 1, 2025 (FY2026). This code can be used to indicate a diagnosis for reimbursement purposes on insurance claims.

This is a 8-character code at the 7th level of specificity. This is the most specific code available in this subcategory.

Frequently Asked Questions

What is ICD-10 code T22.499A?

ICD-10-CM code T22.499A is "Corrosion of unspecified degree of multiple sites of unspecified shoulder and upper limb, except wrist and hand, initial encounter". It belongs to the category: Injury, poisoning and certain other consequences of external causes (S00-T88).

Is T22.499A a billable ICD-10 code?

Yes, T22.499A is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

Can T22.499A be coded with other codes?

T22.499A has 2 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in T22.499

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

T22.499DCorrosion of unspecified degree of multiple sites of unspecified shoulder and upper limb, except wrist and hand, subsequent encounter T22.499SCorrosion of unspecified degree of multiple sites of unspecified shoulder and upper limb, except wrist and hand, sequela

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Code Information

CodeT22.499A

BillableYes

ParentT22.499

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

Excludes10 rule(s)

Excludes22 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)