T23.40
Header — not billableCorrosion of unspecified degree of hand, unspecified site
The ICD-10 code for corrosion of unspecified degree of hand, unspecified site is T23.40.
T23.40 is a non-billable header code. It groups related conditions but cannot be used on its own for reimbursement — select one of the 3 more specific codes below.
Documentation support
General coding-documentation guidance — not a substitute for payer-specific requirements or professional coding judgment.
- •This is a non-billable header code. Documentation must support a more specific child code before this diagnosis can be reported on a claim.
- •As a general rule, code to the highest level of specificity supported by the documentation in the medical record.
Related codes in this category
- T23.41Corrosion of unspecified degree of thumb (nail)non-billable header
- T23.42Corrosion of unspecified degree of single finger (nail) except thumbnon-billable header
- T23.43Corrosion of unspecified degree of multiple fingers (nail), not including thumbnon-billable header
- T23.44Corrosion of unspecified degree of multiple fingers (nail), including thumbnon-billable header
- T23.45Corrosion of unspecified degree of palmnon-billable header
- T23.46Corrosion of unspecified degree of back of handnon-billable header
- T23.47Corrosion of unspecified degree of wristnon-billable header
- T23.49Corrosion of unspecified degree of multiple sites of wrist and handnon-billable header
- T23.40Corrosion of unspecified degree of hand, unspecified sitenon-billable header