octoHealth

T78.4

Non-billable

Other and unspecified allergy

Chapter 19: Injury, poisoning and certain other consequences of external causes

Additional Information

From parent codes: S00-T88 (Chapter 19)

Excludes 1 — Not Coded HereFrom S00-T88

Excludes1 means 'NOT CODED HERE!' An Excludes1 note indicates mutually exclusive codes: two conditions that cannot be reported together.

  • birth trauma (P10-P15)
  • obstetric trauma (O70-O71)
Use Additional CodeFrom S00-T88

The 'use additional code' note instructs that a secondary code should be added to provide more detail.

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