Hi Guest!

D9440 - office visit - after regularly scheduled hours
Can be crosscoded to:
99050 — Services provided in the office at time other than regularly scheduled office hours, or days when the office is closed (e.g., holidays Saturday or Sunday), in addition to basic service

Or, if your office does offer regularly scheduled hours during weekends and holidays when the service took place:

99051 — Service(s) provided in the office during regularly scheduled evening, weekend, or holiday office hours, in addition to basic service.

(when it says "in addition to basic service", that mean you will also bill the appropriate E&M code as well, likely 99201-99203 or 99211-99213).


D0220 - intraoral - periapical first radiographic image
can be cross coded to:
70300 - Radiologic examination, teeth; single view


D2335 - resin-based composite - four or more surfaces or involving incisal angle (anterior)
D4321 - provisional splinting - extracoronal

The codes listed above do not have a direct crosscode we are aware of, so you can either bill the "D" code on the medical claim (many insurers these days will process "D" codes when they are medically necessary services), or you can use the CPT code below and include a narrative report describing the procedure:
41899 - Unlisted procedure, dentoalveolar structures


Are you all set to go on your ICD-10 diagnosis codes?

Hope this helps!