Convert to ICD-10-CM: 
308.9 converts approximately to:
- 2015/16 ICD-10-CM F43.0 Acute stress reactionOr: 
- 2015/16 ICD-10-CM R45.7 State of emotional shock and stress, unspecified
 ICD-9-CM Volume 2 Index entries containing back-references to 
308.9:
- Battle exhaustion (see also Reaction, stress, acute) 308.9
- Combat fatigue (see also Reaction, stress, acute) 308.9
- Delirium, delirious 780.09  exhaustion (see also Reaction, stress, acute) 308.9 exhaustion (see also Reaction, stress, acute) 308.9
 
- Exhaustion, exhaustive (physical NEC) 780.79  battle (see also Reaction, stress, acute) 308.9 battle (see also Reaction, stress, acute) 308.9
  delirium (see also Reaction, stress, acute) 308.9 delirium (see also Reaction, stress, acute) 308.9
  psychosis (see also Reaction, stress, acute) 308.9 psychosis (see also Reaction, stress, acute) 308.9
 
- Fatigue 780.79  combat (see also Reaction, stress, acute) 308.9 combat (see also Reaction, stress, acute) 308.9
 
- Psychosis 298.9  exhaustive (see also Reaction, stress, acute) 308.9 exhaustive (see also Reaction, stress, acute) 308.9
 
- Reaction gross stress (see also Reaction, stress, acute) 308.9 gross stress (see also Reaction, stress, acute) 308.9
  stress, acute 308.9 stress, acute 308.9  with predominant disturbance (of) with predominant disturbance (of)
  bone or cartilage - see Fracture, stress bone or cartilage - see Fracture, stress
 
 
- Shell shock (current) (see also Reaction, stress, acute) 308.9 shock (current) (see also Reaction, stress, acute) 308.9
 
- Shock 785.50  nervous (see also Reaction, stress, acute) 308.9 nervous (see also Reaction, stress, acute) 308.9
  psychic (see also Reaction, stress, acute) 308.9 psychic (see also Reaction, stress, acute) 308.9
  psychogenic (see also Reaction, stress, acute) 308.9 psychogenic (see also Reaction, stress, acute) 308.9
 
- Stress reaction (gross) (see also Reaction, stress, acute) 308.9 reaction (gross) (see also Reaction, stress, acute) 308.9
 
- Syndrome - see also Disease shock (traumatic) 958.4 shock (traumatic) 958.4   kidney 584.5 kidney 584.5    following crush injury 958.5 following crush injury 958.5 
 
  lung 518.5 lung 518.5 
  neurogenic 308.9 neurogenic 308.9
  psychic 308.9 psychic 308.9