🦷 Dental Coding Sheet: Oral Appliance Therapy for OSA

For Use in Birmingham, AL General Dentistry Practices

CDT (Dental) Procedure Codes

D9944 Custom sleep apnea appliance, initial. Use for delivery of the first oral appliance

D9945 Adjustment of sleep appliance. Use for follow-up titrations or hardware tweaks

D9946 Repair of sleep apnea appliance. Use for fixing damaged or worn appliances

ICD-10 Diagnosis Codes

G47.33 Obstructive sleep apnea (OSA), adult. Primary code for most patients

G47.30 Sleep apnea, unspecified. Use if diagnosis subtype is unclear

Z13.89 Encounter for screening (suspected OSA). For patients screened using STOP-Bang or ESS

Medical CPT Codes (If Billing to Medical Insurance)

E0486 Oral device/appliance, custom, for OSA. Must include supporting documentation and Rx

99202–99205 New patient evaluation (time-based). Use when doing a full sleep consult

70371 CBCT radiologic supervision and interpretation. Pair with your CBCT scan if read by dentist/radiologist

Supporting Documentation Checklist

✔ STOP-Bang or Epworth Sleepiness Scale scores

✔ Physician referral or polysomnography (if billed to medical)

✔ CBCT airway measurements (optional but supportive)

✔ Treatment notes including titration logs and follow-up summaries

✔ Signed patient consent and financial agreement

Tips for Successful Reimbursement

• Pair D9944 with G47.33 for dental-only claims when medical billing is not viable

• If billing medical, coordinate benefits first—ensure your practice is credentialed or bill via a third-party medical billing service

• Use strong documentation—medical necessity letters, sleep-study reports, and progress notes improve approval rates