T23.5 — Corrosion of first degree of wrist and hand
Not billable
Is T23.5 billable?
No — T23.5 is a non-billable header code. T23.5 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 60 billable codes beneath T23.5.
Billable codes under this header
- T23.501ACorrosion of first degree of right hand, unspecified site, initial encounter
- T23.501DCorrosion of first degree of right hand, unspecified site, subsequent encounter
- T23.501SCorrosion of first degree of right hand, unspecified site, sequela
- T23.502ACorrosion of first degree of left hand, unspecified site, initial encounter
- T23.502DCorrosion of first degree of left hand, unspecified site, subsequent encounter
- T23.502SCorrosion of first degree of left hand, unspecified site, sequela
- T23.509ACorrosion of first degree of unspecified hand, unspecified site, initial encounter
- T23.509DCorrosion of first degree of unspecified hand, unspecified site, subsequent encounter
- T23.509SCorrosion of first degree of unspecified hand, unspecified site, sequela
- T23.511ACorrosion of first degree of right thumb (nail), initial encounter
- T23.511DCorrosion of first degree of right thumb (nail), subsequent encounter
- T23.511SCorrosion of first degree of right thumb (nail), sequela
- T23.512ACorrosion of first degree of left thumb (nail), initial encounter
- T23.512DCorrosion of first degree of left thumb (nail), subsequent encounter
- T23.512SCorrosion of first degree of left thumb (nail), sequela
- T23.519ACorrosion of first degree of unspecified thumb (nail), initial encounter
- T23.519DCorrosion of first degree of unspecified thumb (nail), subsequent encounter
- T23.519SCorrosion of first degree of unspecified thumb (nail), sequela
- T23.521ACorrosion of first degree of single right finger (nail) except thumb, initial encounter
- T23.521DCorrosion of first degree of single right finger (nail) except thumb, subsequent encounter
- T23.521SCorrosion of first degree of single right finger (nail) except thumb, sequela
- T23.522ACorrosion of first degree of single left finger (nail) except thumb, initial encounter
- T23.522DCorrosion of first degree of single left finger (nail) except thumb, subsequent encounter
- T23.522SCorrosion of first degree of single left finger (nail) except thumb, sequela
- T23.529ACorrosion of first degree of unspecified single finger (nail) except thumb, initial encounter
- T23.529DCorrosion of first degree of unspecified single finger (nail) except thumb, subsequent encounter
- T23.529SCorrosion of first degree of unspecified single finger (nail) except thumb, sequela
- T23.531ACorrosion of first degree of multiple right fingers (nail), not including thumb, initial encounter
- T23.531DCorrosion of first degree of multiple right fingers (nail), not including thumb, subsequent encounter
- T23.531SCorrosion of first degree of multiple right fingers (nail), not including thumb, sequela
- T23.532ACorrosion of first degree of multiple left fingers (nail), not including thumb, initial encounter
- T23.532DCorrosion of first degree of multiple left fingers (nail), not including thumb, subsequent encounter
- T23.532SCorrosion of first degree of multiple left fingers (nail), not including thumb, sequela
- T23.539ACorrosion of first degree of unspecified multiple fingers (nail), not including thumb, initial encounter
- T23.539DCorrosion of first degree of unspecified multiple fingers (nail), not including thumb, subsequent encounter
- T23.539SCorrosion of first degree of unspecified multiple fingers (nail), not including thumb, sequela
- T23.541ACorrosion of first degree of multiple right fingers (nail), including thumb, initial encounter
- T23.541DCorrosion of first degree of multiple right fingers (nail), including thumb, subsequent encounter
- T23.541SCorrosion of first degree of multiple right fingers (nail), including thumb, sequela
- T23.542ACorrosion of first degree of multiple left fingers (nail), including thumb, initial encounter
- T23.542DCorrosion of first degree of multiple left fingers (nail), including thumb, subsequent encounter
- T23.542SCorrosion of first degree of multiple left fingers (nail), including thumb, sequela
- T23.549ACorrosion of first degree of unspecified multiple fingers (nail), including thumb, initial encounter
- T23.549DCorrosion of first degree of unspecified multiple fingers (nail), including thumb, subsequent encounter
- T23.549SCorrosion of first degree of unspecified multiple fingers (nail), including thumb, sequela
- T23.551ACorrosion of first degree of right palm, initial encounter
- T23.551DCorrosion of first degree of right palm, subsequent encounter
- T23.551SCorrosion of first degree of right palm, sequela
- T23.552ACorrosion of first degree of left palm, initial encounter
- T23.552DCorrosion of first degree of left palm, subsequent encounter
- T23.552SCorrosion of first degree of left palm, sequela
- T23.559ACorrosion of first degree of unspecified palm, initial encounter
- T23.559DCorrosion of first degree of unspecified palm, subsequent encounter
- T23.559SCorrosion of first degree of unspecified palm, sequela
- T23.561ACorrosion of first degree of back of right hand, initial encounter
- T23.561DCorrosion of first degree of back of right hand, subsequent encounter
- T23.561SCorrosion of first degree of back of right hand, sequela
- T23.562ACorrosion of first degree of back of left hand, initial encounter
- T23.562DCorrosion of first degree of back of left hand, subsequent encounter
- T23.562SCorrosion of first degree of back of left hand, sequela
T23.5 at a glance
| Code | T23.5 |
|---|---|
| Description | Corrosion of first degree of wrist and hand |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Code first
The underlying condition below must be sequenced before T23.5. T23.5 describes a manifestation and cannot be the principal or first-listed diagnosis.
- (T51-T65) to identify chemical and intent
Use additional code
Report an additional code alongside T23.5 to fully describe the condition. T23.5 is sequenced first.
- external cause code to identify place (Y92)
Use additional code — inherited from Chapter 19
Report an additional code alongside T23.5 to fully describe the condition. T23.5 is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Use additional code — inherited from T20-T25
Report an additional code alongside T23.5 to fully describe the condition. T23.5 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T23.5, but a patient may have both at the same time. When documentation supports it, T23.5 and the excluded code may both be reported.
What codes fall under T23.5? (9)
- T23.50Corrosion of first degree of hand, unspecified sitenot billable
- T23.51Corrosion of first degree of thumb (nail)not billable
- T23.52Corrosion of first degree of single finger (nail) except thumbnot billable
- T23.53Corrosion of first degree of multiple fingers (nail), not including thumbnot billable
- T23.54Corrosion of first degree of multiple fingers (nail), including thumbnot billable
- T23.55Corrosion of first degree of palmnot billable
- T23.56Corrosion of first degree of back of handnot billable
- T23.57Corrosion of first degree of wristnot billable
- T23.59Corrosion of first degree of multiple sites of wrist and handnot billable
How long has T23.5 existed?
T23.5 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
What other codes are in the T23 family? (7)
- T23.0Burn of unspecified degree of wrist and handnot billable
- T23.1Burn of first degree of wrist and handnot billable
- T23.2Burn of second degree of wrist and handnot billable
- T23.3Burn of third degree of wrist and handnot billable
- T23.4Corrosion of unspecified degree of wrist and handnot billable
- T23.6Corrosion of second degree of wrist and handnot billable
- T23.7Corrosion of third degree of wrist and handnot billable