Z86.51

Personal history of combat and operational stress reaction

Billable / specificPOA exempt

Z86.51 is a billable, specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes in FY2027.

Inclusion terms

Includes (from Z86)

  • Note: 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:
  • Note: (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.
  • Note: (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.

Code first

Sequence the underlying condition first.

  • any follow-up examination after treatment (Z09) (from Z86)

Code also

An additional code may be needed.

  • any follow-up examination (Z08-Z09) (from Z86)

Also known as

  • History, personal, combat and operational stress reaction

Parent code

  • Z86.5Personal history of mental and behavioral disordersHeader

Related codes

  • Z86.59Personal history of other mental and behavioral disordersBillable

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