ICDcodes.org
FY2027

T20.47 — Corrosion of unspecified degree of neck

Not billable

Is T20.47 billable?

No — T20.47 is a non-billable header code. T20.47 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 3 billable codes beneath T20.47.

T20.47 at a glance

CodeT20.47
DescriptionCorrosion of unspecified degree of neck
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is T20.47 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to T20.47. They show the wording a clinician may have documented, which often differs from the Tabular description.

  • Corrosion › neck (injury) (acid) (caustic) (chemical) (lime) (external) (internal)

Code first — inherited from T20.4

The underlying condition below must be sequenced before T20.47. T20.47 describes a manifestation and cannot be the principal or first-listed diagnosis.

  • (T51-T65) to identify chemical and intent

Use additional code — inherited from Chapter 19

Report an additional code alongside T20.47 to fully describe the condition. T20.47 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 T20.47 to fully describe the condition. T20.47 is sequenced first.

  • code from category T31 or T32 to identify extent of body surface involved

Use additional code — inherited from T20.4

Report an additional code alongside T20.47 to fully describe the condition. T20.47 is sequenced first.

  • external cause code to identify place (Y92)

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of T20.47, but a patient may have both at the same time. When documentation supports it, T20.47 and the excluded code may both be reported.

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)

Excludes2 — not included here — inherited from T20

The conditions below are not part of T20.47, but a patient may have both at the same time. When documentation supports it, T20.47 and the excluded code may both be reported.

  • burn and corrosion of ear drum (T28.41, T28.91)
  • burn and corrosion of eye and adnexa (T26.-)
  • burn and corrosion of mouth and pharynx (T28.0)

What codes fall under T20.47? (3)

How long has T20.47 existed?

T20.47 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.

Which conditions are coded to T20.47?

What other codes are in the T20.4 family? (8)