Z04.1 – Encounter for examination and observation following transport accident
ICD-10-CM 2027 diagnosis code · Persons encountering health services for examinations
- Code
Z04.1(claims format:Z041)- Description
- Encounter for examination and observation following transport accident
- Short description
- Encounter for exam and obs following transport accident
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 21. Factors influencing health status and contact with health services (Z00-Z99)
- Block
- Z00-Z13 Persons encountering health services for examinations
- Parent codes
- Z04
Notes for Z04.1
- encounter for examination and observation following work accident (Z04.2)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
Z04 – Encounter for examination and observation for other reasons
- 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.
Block Z00-Z13
- Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
Index terms for Z04.1
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in Z04
- Z04.2 – Encounter for examination and observation following work accidentBillable
- Z04.3 – Encounter for examination and observation following other accidentBillable
- Z04.4 – Encounter for examination and observation following alleged rapeHeader
- Z04.6 – Encounter for general psychiatric examination, requested by authorityBillable
- Z04.7 – Encounter for examination and observation following alleged physical abuseHeader
- Z04.8 – Encounter for examination and observation for other specified reasonsHeader
- Z04.9 – Encounter for examination and observation for unspecified reasonBillable
Frequently asked questions
What is ICD-10 code Z04.1?
Z04.1 is the ICD-10-CM code for encounter for examination and observation following transport accident, in the block Z00-Z13 (Persons encountering health services for examinations).
Is Z04.1 a billable code?
Yes. Z04.1 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does Z04.1 belong to?
It belongs to category Z04 – Encounter for examination and observation for other reasons.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.