Y92.538

Other ambulatory health services establishments as the place of occurrence of the external cause

FY2027Chapter 20: External causes of morbidity/Y90–Y99 Supplementary factors related to causes of morbidity classified elsewhere

BillableComplete code, valid to report

Y92.538 (also written Y92538) is a billable ICD-10-CM diagnosis code for other ambulatory health services establishments as the place of occurrence of the external cause. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 209 codes in category Y92 (Place of occurrence of the external cause). Its coding notes include 2 Excludes1 entries.

Guidelines tips

From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.

An external cause code is never a principal or first-listed diagnosis. Its 7th character is assigned for each encounter and should match the injury or condition code.

Guidelines I.C.20.a.2; I.C.20.a.6External cause codesRead the official text

Y92 is a secondary code used after other external cause codes, generally once at the initial encounter. Y92.9 is not used when the place is not stated.

Guidelines I.C.20.bPlace of occurrence (Y92)Read the official text

Excludes1

Not coded here. The listed conditions generally should not be reported together.

Inherited from Y92.5 Trade and service area as the place of occurrence of the external cause
  • garage in private home (Y92.015)
  • schools and other public administration buildings (Y92.2-)

Notes

Also from chapter/block level (2 notes)
Inherited from Y90–Y99 Supplementary factors related to causes of morbidity classified elsewhere
  • These categories may be used to provide supplementary information concerning causes of morbidity. They are not to be used for single-condition coding.
Inherited from Chapter 20 External causes of morbidity
  • 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.