Y99.2

Volunteer activity

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

Exclusions 1 never code together

Excludes1

activity of child or other family member assisting in compensated work of other family member (Y99.8)Y99.8 Y99.8

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

Instructional notes 3

Y99code

Notes

A single code from category Y99 should be used in conjunction with the external cause code(s) assigned to a record to indicate the status of the person at the time the event occurred.Y99

Notes

These categories may be used to provide supplementary information concerning causes of morbidity. They are not to be used for single-condition coding.

Notes

This chapter permits the classification of environmental events and circumstances as the cause of injury, and other adverse effects. Where a code from this section is applicable, it is intended that it shall be used secondary to a code from another chapter of the Classification indicating the nature of the condition. Most often, the condition will be classifiable to Chapter 19, Injury, poisoning and certain other consequences of external causes (S00-T88). Other conditions that may be stated to be due to external causes are classified in Chapters I to XVIII. For these conditions, codes from Chapter 20 should be used to provide additional information as to the cause of the condition.S00-T88

Index entries leading here 2

Alongside this code 4 same parent — Y99

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.