Here's the skinny on DSM and its relationship to I-10.
DSM has never been a "HIPAA-compliant" code set. This means that providers continue to use it for its intended purpose: diagnosing patients, but coders must be bound by the ICD-9-CM guidelines, rules, etc. Most of the time the two align, as DSM is an extension of the mental health chapter of ICD-9, with clinical relevancy.
For ICD-10, the same is true. Coders will be bound by the conventions, guidelines, structure, etc within that classification system, as it is "HIPAA-compliant". DSM-V will replace DSM-IV-TR. Actually DSM-IV already has a "crosswalk" to I-10 codes. See Appendix H (pg 883) of DSM for this feature.
In other words, it does not matter what "DSM codes" the providers choose. Code selection is actually based on the narrative, clinical diagnoses of the practitioner and selected out of ICD (whichever version is appropriate for the date of service and assuming we get to implement I-10). I hope this helps. There seems a lot of confusion over this throughout the industry, though I've always blamed it on the providers.
Kevin B. Shields, RHIT, CPCO, CCS, CPC, COC, CCS-P, CPC-P, CPC-I