ICDcodes.org
FY2027

T26.9 — Corrosion of eye and adnexa, part unspecified

Not billable

Is T26.9 billable?

No — T26.9 is a non-billable header code. T26.9 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 9 billable codes beneath T26.9.

T26.9 at a glance

CodeT26.9
DescriptionCorrosion of eye and adnexa, part unspecified
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

How is T26.9 listed in the Alphabetic Index?

These are the routes through the Alphabetic Index that lead to T26.9. They show the wording a clinician may have documented, which often differs from the Tabular description.

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

Code first

The underlying condition below must be sequenced before T26.9. T26.9 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 T26.9 to fully describe the condition. T26.9 is sequenced first.

  • external cause code to identify place (Y92)

Use additional code — inherited from Chapter 19

Report an additional code alongside T26.9 to fully describe the condition. T26.9 is sequenced first.

  • code to identify any retained foreign body, if applicable (Z18.-)

Excludes2 — not included here — inherited from Chapter 19

The conditions below are not part of T26.9, but a patient may have both at the same time. When documentation supports it, T26.9 and the excluded code may both be reported.

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

What codes fall under T26.9? (3)

How long has T26.9 existed?

T26.9 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 T26.9?

What other codes are in the T26 family? (9)