ICD-10 Diagnosis Code Y99.1

Military activity

Diagnosis Code Y99.1

ICD-10: Y99.1
Short Description: Military activity
Long Description: Military activity
This is the 2018 version of the ICD-10-CM diagnosis code Y99.1

Valid for Submission
The code Y99.1 is valid for submission for HIPAA-covered transactions.

Code Classification
  • External causes of morbidity and mortality (V01–Y98)
    • Supplementary factors related to causes of morbidity classified elsewhere (Y90-Y99)
      • External cause status (Y99)

Information for Medical Professionals

Convert to ICD-9 Additional informationCallout TooltipGeneral Equivalence Map
The ICD-10 and ICD-9 GEMs are used to facilitate linking between the diagnosis codes in ICD-9-CM and the new ICD-10-CM code set. The GEMs are the raw material from which providers, health information vendors and payers can derive specific applied mappings to meet their needs.

Present on Admission (POA) Additional informationCallout TooltipPresent on Admission
The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement.

The code Y99.1 is exempt from POA reporting.

  • Chronic post-traumatic stress disorder
  • Chronic post-traumatic stress disorder following military combat
  • Posttraumatic stress disorder

Index of Diseases and Injuries
References found for the code Y99.1 in the Index of Diseases and Injuries:

Index of External Cause of Injuries
References found for the code Y99.1 in the External Cause of Injuries Index:

    • External cause status
      • military activity
    • Status of external cause
      • military activity

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