That's a strange question, as if the DSM 5 is perfect. DSM 5 was published in May 18, 2013. I'm not aware of any updates to the DID section since then. The OSDD 1B & 1A (Other Specified Dissociative Disorder) section is about a half of a page long. Psychologist have learned a lot since then. My trauma therapist went over the DID section of the DSM 5 with me in therapy. She said it leaves a lot open for interpretation which can lead to completely different diagnoses from therapist to therapist regarding DID and even more so for OSDD 1A/1B. I asked her what does the DSM 5 say about people who don't have missing time on a daily bases, like maybe once a month. Is that a deal breaker for a DID diagnoses? She said the DSM 5 doesn't say.