ICD-10 Diagnosis Code R99

Ill-defined and unknown cause of mortality

Diagnosis Code R99

ICD-10: R99
Short Description: Ill-defined and unknown cause of mortality
Long Description: Ill-defined and unknown cause of mortality
This is the 2017 version of the ICD-10-CM diagnosis code R99

Valid for Submission
The code R99 is valid for submission for HIPAA-covered transactions.

Code Classification
  • Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00–R99)
    • Ill-defined and unknown cause of mortality (R99)
      • Ill-defined and unknown cause of mortality (R99)

Information for Medical Professionals

According to ICD-10-CM guidelines this code should not to be used as a principal diagnosis code when a related definitive diagnosis has been established.
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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.

Synonyms
  • Accidental death
  • Accidental death in public place
  • Dead - death without witness
  • Death
  • Death from overwork
  • Death from sequelae of indirect maternal cause
  • Death in home
  • Death in hospice
  • Death in hospital
  • Death in hospital-based emergency department
  • Death in hospital-based outpatient department
  • Death in less than 24 hours from onset of symptoms
  • Death in long term care facility
  • Death in nursing home
  • Death occurring less than 24 hours from onset of symptoms, not otherwise expected
  • Death unattended by physician
  • Direct maternal death
  • Early neonatal death
  • Growth retardation, amino aciduria, cholestasis, iron overload, lactic acidosis, and early death
  • Indirect maternal death
  • Infant death
  • Instantaneous death
  • Late neonatal death
  • Maternal death
  • Natural death
  • Natural death with proved cause by autopsy
  • Neonatal death of female
  • Neonatal death of female
  • Neonatal death of male
  • Neonatal death of male
  • Newborn death
  • On examination - dead
  • On examination - dead - cot death
  • On examination - dead - expected
  • On examination - dead - sudden death
  • On examination - dead - suspicious death
  • On examination - dead - unattended death
  • On examination - dead - unexpected
  • Patient died
  • Patient died at home
  • Patient died during operation
  • Patient died in care home
  • Patient died in general practice premises
  • Patient died in hospice
  • Patient died in hospital
  • Patient died in nursing home
  • Patient died in street
  • Patient died in usual place of residence
  • Perinatal and neonatal death
  • Perinatal and neonatal death
  • Perinatal death
  • Perioperative death
  • Postneonatal death
  • Preoperative anesthetic death
  • Sudden death
  • Sudden death
  • Sudden death of unknown cause during the puerperium
  • Sudden death, cause unknown
  • Sudden death, cause unknown
  • Sudden infant death
  • Sudden infant death syndrome
  • Sudden infant death with dysgenesis of testes syndrome
  • Traffic vehicular accidental death
  • Unattended death
  • Unattended death of unknown cause
  • Unexpected death
  • Unexpected sudden death of adult
  • Unexplained sudden death

Index of Diseases and Injuries
References found for the code R99 in the Index of Diseases and Injuries:


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