Z04.1

Encounter for examination and observation following transport accident

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 2 never code together

Excludes1

encounter for examination and observation following work accident (Z04.2)Z04.2 Z04.2

Excludes2

examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)Z30-Z36 Z39.-

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 6

Z04code

Includes

encounter for examination for medicolegal reasons
This category is to be used when a person without a diagnosis is suspected of having an abnormal condition, without signs or symptoms, which requires study, but after examination and observation, is ruled-out. This category is also for use for administrative and legal observation status.

Notes

Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.R70-R94

Notes

Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:Z00-Z99 A00-Y89
(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Index entries leading here 2

Examination (for) (following) (general) (of) (routine) Z00.00
- following
  - accident NEC Z04.3
    - transport Z04.1
  - motor vehicle accident Z04.1
Observation (following) (for) (without need for further medical care) Z04.9
- accident NEC Z04.3
  - transport Z04.1

Alongside this code 7 same parent — Z04

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

Present FY2024–FY2027.