ICDcodes.org
FY2027

T22.42 — Corrosion of unspecified degree of elbow

Not billable

Is T22.42 billable?

No — T22.42 is a non-billable header code. T22.42 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 T22.42.

T22.42 at a glance

CodeT22.42
DescriptionCorrosion of unspecified degree of elbow
BillableNo — header code
Code setICD-10-CM FY2027
Valid for encountersOctober 1, 2026 – September 30, 2027

Code first — inherited from T22.4

The underlying condition below must be sequenced before T22.42. T22.42 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 T22.42 to fully describe the condition. T22.42 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 T22.42 to fully describe the condition. T22.42 is sequenced first.

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

Use additional code — inherited from T22.4

Report an additional code alongside T22.42 to fully describe the condition. T22.42 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 T22.42, but a patient may have both at the same time. When documentation supports it, T22.42 and the excluded code may both be reported.

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

Excludes2 — not included here — inherited from T22

The conditions below are not part of T22.42, but a patient may have both at the same time. When documentation supports it, T22.42 and the excluded code may both be reported.

  • burn and corrosion of interscapular region (T21.-)
  • burn and corrosion of wrist and hand (T23.-)

What codes fall under T22.42? (3)

How long has T22.42 existed?

T22.42 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 T22.4 family? (7)