T20.7 — Corrosion of third degree of head, face, and neck
Is T20.7 billable?
No — T20.7 is a non-billable header code. T20.7 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 33 billable codes beneath T20.7.
Billable codes under this header
- T20.70XACorrosion of third degree of head, face, and neck, unspecified site, initial encounter
- T20.70XDCorrosion of third degree of head, face, and neck, unspecified site, subsequent encounter
- T20.70XSCorrosion of third degree of head, face, and neck, unspecified site, sequela
- T20.72XACorrosion of third degree of lip(s), initial encounter
- T20.72XDCorrosion of third degree of lip(s), subsequent encounter
- T20.72XSCorrosion of third degree of lip(s), sequela
- T20.73XACorrosion of third degree of chin, initial encounter
- T20.73XDCorrosion of third degree of chin, subsequent encounter
- T20.73XSCorrosion of third degree of chin, sequela
- T20.74XACorrosion of third degree of nose (septum), initial encounter
- T20.74XDCorrosion of third degree of nose (septum), subsequent encounter
- T20.74XSCorrosion of third degree of nose (septum), sequela
- T20.75XACorrosion of third degree of scalp [any part], initial encounter
- T20.75XDCorrosion of third degree of scalp [any part], subsequent encounter
- T20.75XSCorrosion of third degree of scalp [any part], sequela
- T20.76XACorrosion of third degree of forehead and cheek, initial encounter
- T20.76XDCorrosion of third degree of forehead and cheek, subsequent encounter
- T20.76XSCorrosion of third degree of forehead and cheek, sequela
- T20.77XACorrosion of third degree of neck, initial encounter
- T20.77XDCorrosion of third degree of neck, subsequent encounter
- T20.77XSCorrosion of third degree of neck, sequela
- T20.79XACorrosion of third degree of multiple sites of head, face, and neck, initial encounter
- T20.79XDCorrosion of third degree of multiple sites of head, face, and neck, subsequent encounter
- T20.79XSCorrosion of third degree of multiple sites of head, face, and neck, sequela
- T20.711ACorrosion of third degree of right ear [any part, except ear drum], initial encounter
- T20.711DCorrosion of third degree of right ear [any part, except ear drum], subsequent encounter
- T20.711SCorrosion of third degree of right ear [any part, except ear drum], sequela
- T20.712ACorrosion of third degree of left ear [any part, except ear drum], initial encounter
- T20.712DCorrosion of third degree of left ear [any part, except ear drum], subsequent encounter
- T20.712SCorrosion of third degree of left ear [any part, except ear drum], sequela
- T20.719ACorrosion of third degree of unspecified ear [any part, except ear drum], initial encounter
- T20.719DCorrosion of third degree of unspecified ear [any part, except ear drum], subsequent encounter
- T20.719SCorrosion of third degree of unspecified ear [any part, except ear drum], sequela
T20.7 at a glance
| Code | T20.7 |
|---|---|
| Description | Corrosion of third degree of head, face, and neck |
| 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 T20.7. T20.7 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 T20.7 to fully describe the condition. T20.7 is sequenced first.
- external cause code to identify place (Y92)
Use additional code — inherited from Chapter 19
Report an additional code alongside T20.7 to fully describe the condition. T20.7 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 T20.7 to fully describe the condition. T20.7 is sequenced first.
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of T20.7, but a patient may have both at the same time. When documentation supports it, T20.7 and the excluded code may both be reported.
Excludes2 — not included here — inherited from T20
The conditions below are not part of T20.7, but a patient may have both at the same time. When documentation supports it, T20.7 and the excluded code may both be reported.
What codes fall under T20.7? (9)
- T20.70Corrosion of third degree of head, face, and neck, unspecified sitenot billable
- T20.71Corrosion of third degree of ear [any part, except ear drum]not billable
- T20.72Corrosion of third degree of lip(s)not billable
- T20.73Corrosion of third degree of chinnot billable
- T20.74Corrosion of third degree of nose (septum)not billable
- T20.75Corrosion of third degree of scalp [any part]not billable
- T20.76Corrosion of third degree of forehead and cheeknot billable
- T20.77Corrosion of third degree of necknot billable
- T20.79Corrosion of third degree of multiple sites of head, face, and necknot billable
How long has T20.7 existed?
T20.7 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 T20 family? (7)
- T20.0Burn of unspecified degree of head, face, and necknot billable
- T20.1Burn of first degree of head, face, and necknot billable
- T20.2Burn of second degree of head, face, and necknot billable
- T20.3Burn of third degree of head, face, and necknot billable
- T20.4Corrosion of unspecified degree of head, face, and necknot billable
- T20.5Corrosion of first degree of head, face, and necknot billable
- T20.6Corrosion of second degree of head, face, and necknot billable