DSM-IV code table
The DSM-IV code table contains 281 codes. As DSM-IV uses the same codes for several diagnoses, duplicate codes have been grouped together so that each code is unique.
The software to map between DSM-IV, ICD-9-CD-A and ICD-10-AM consists of six mapping files:
- forward – ICD-9-CM-A to DSM-IV
- forward – ICD-10-AM to DSM-IV
- forward – ICD-10-AM to DSM-IV valid 1 July 2004
- backward – DSM-IV to ICD-9-CM-A
- backward – DSM-IV to ICD-10-AM
- backward – DSM-IV to ICD-10-AM valid 1 July 2004.
NZHIS mapping process
The NZHIS Clinical Coding Unit completed mapping tables between DSM-IV (Diagnostic and Statistical Manual of Mental Disorders, 4th edition, 6th printing) and ICD-9-CM-A (Australian Version of The International Classification of Diseases, 9th Revision, Clinical Modification, 2nd edition) and ICD-10-AM (The International Statistical Classification of Diseases and Related Health Problems, 10th Revision).
Where an exact map could not be made or codes could not be mapped directly, the closest match was decided upon and documented as such with comments added to explain the mapping. These mapping tables were reviewed and signed off by the Ministry of Health.