2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Mental Disorders 290-319 > Neurotic Disorders, Personality Disorders, And Other Nonpsychotic Mental Disorders 300-316 > Adjustment Reaction 309.* > 2006 ICD-9-CM Diagnosis 309.1 Adjustment reaction with prolonged depressive reaction View the most recent version of ICD-9-CM 309.1 309.1 is a specific code that can be used to specify a diagnosis 309.1 contains 6 index entries View the ICD-9-CM Volume 1 309.* hierarchy 309.1 Excludes affective psychoses (296.0-296.9) brief depressive reaction (309.0) neurotic depression (300.4) psychogenic depressive psychosis (298.0)  Index entries containing 309.1: Depression 311 situational (acute) (brief) 309.0 prolonged 309.1 Depressive reaction - see also Reaction, depressive prolonged 309.1 situational (acute) 309.0 prolonged 309.1 Reaction adjustment 309.9 with depressed mood 309.0 prolonged 309.1 depressive 309.0 prolonged 309.1 grief (acute) (brief) 309.0 prolonged 309.1