T23.7
Non-Billable

Corrosion of third degree of wrist and hand

Non-Billable / Non-Specific Code

What is Corrosion of third degree of wrist and hand?

ICD-10-CM T23.7 is the diagnosis code for Corrosion of third degree of wrist and hand. This code falls under the section "Burns and corrosions of external body surface, specified by site" 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.

Coding Guidelines for T23.7

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.

ICD-10-CM Code Hierarchy

Understanding where T23.7 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 9 entries
T23.70Corrosion of third degree of hand, unspecified siteNon-BillableT23.701Corrosion of third degree of right hand, unspecified siteBillableT23.702Corrosion of third degree of left hand, unspecified siteBillableT23.709Corrosion of third degree of unspecified hand, unspecified siteBillableT23.71Corrosion of third degree of thumb (nail)Non-BillableT23.711Corrosion of third degree of right thumb (nail)BillableT23.712Corrosion of third degree of left thumb (nail)BillableT23.719Corrosion of third degree of unspecified thumb (nail)BillableT23.72Corrosion of third degree of single finger (nail) except thumbNon-BillableT23.721Corrosion of third degree of single right finger (nail) except thumbBillableT23.722Corrosion of third degree of single left finger (nail) except thumbBillableT23.729Corrosion of third degree of unspecified single finger (nail) except thumbBillableT23.73Corrosion of third degree of multiple fingers (nail), not including thumbNon-BillableT23.731Corrosion of third degree of multiple right fingers (nail), not including thumbBillableT23.732Corrosion of third degree of multiple left fingers (nail), not including thumbBillableT23.739Corrosion of third degree of unspecified multiple fingers (nail), not including thumbBillableT23.74Corrosion of third degree of multiple fingers (nail), including thumbNon-BillableT23.741Corrosion of third degree of multiple right fingers (nail), including thumbBillableT23.742Corrosion of third degree of multiple left fingers (nail), including thumbBillableT23.749Corrosion of third degree of unspecified multiple fingers (nail), including thumbBillableT23.75Corrosion of third degree of palmNon-BillableT23.751Corrosion of third degree of right palmBillableT23.752Corrosion of third degree of left palmBillableT23.759Corrosion of third degree of unspecified palmBillableT23.76Corrosion of third degree of back of handNon-BillableT23.761Corrosion of third degree of back of right handBillableT23.762Corrosion of third degree of back of left handBillableT23.769Corrosion of third degree back of unspecified handBillableT23.77Corrosion of third degree of wristNon-BillableT23.771Corrosion of third degree of right wristBillableT23.772Corrosion of third degree of left wristBillableT23.779Corrosion of third degree of unspecified wristBillableT23.79Corrosion of third degree of multiple sites of wrist and handNon-BillableT23.791Corrosion of third degree of multiple sites of right wrist and handBillableT23.792Corrosion of third degree of multiple sites of left wrist and handBillableT23.799Corrosion of third degree of multiple sites of unspecified wrist and handBillable
Related Codes

Frequently Asked Questions

Is T23.7 a billable ICD-10-CM code?

No, T23.7 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does T23.7 mean?

T23.7 is the ICD-10-CM diagnosis code for "Corrosion of third degree of wrist and hand". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of T23.7?

The parent code of T23.7 is T23 ("Burn and corrosion of wrist and hand"). T23.7 provides a more specific classification within this category.

What section is T23.7 in?

T23.7 is located in Section T20-T25 — "Burns and corrosions of external body surface, specified by site" within Chapter 19 of the ICD-10-CM Tabular List.

What are the sub-codes of T23.7?

T23.7 has 9 sub-code(s) that provide more specific detail: T23.70, T23.71, T23.72, T23.73, T23.74 and more.

When should I use T23.7?

Use T23.7 when the patients documented diagnosis matches "Corrosion of third degree of wrist and hand" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Corrosion of third degree of wrist and hand?

The ICD-10-CM code for Corrosion of third degree of wrist and hand is T23.7.

Can T23.7 be used for primary diagnosis?

No, T23.7 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is T23.7 in?

T23.7 is in Chapter 19 of the ICD-10-CM Tabular List.

Is T23.7 valid for 2026?

Yes, T23.7 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousT23.699Corrosion of second degree of multiple sites of unspecified wrist and handNext →T23.70Corrosion of third degree of hand, unspecified site
Code Details
T23.7
Corrosion of third degree of wrist and hand
Non-Billable / Non-Specific Code
19 — Injury, poisoning and certain other consequences of external causes (S00-T88)
T20-T25 — Burns and corrosions of external body surface, specified by site
2026 ICD-10-CM