ICD-10 code for posterior occlusal support lack of

The ICD-10-CM code for posterior occlusal support lack of is M26.57 (Lack of posterior occlusal support).

Within M26.5 (dentofacial functional abnormalities), M26.57 is specifically for lack of posterior occlusal support. Related codes cover unspecified (M26.50), abnormal jaw closure (M26.51), limited mandibular range of motion (M26.52), deviation in opening and closing of the mandible (M26.53), insufficient anterior guidance (M26.54), Centric occlusion maximum intercuspation discrepancy (M26.55), Non-working side interference (M26.56) and other dentofacial functional abnormalities (M26.59).

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

In MS-DRG v44.0, it is part of the grouping logic for DRG 011 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with MCC, relative weight 5.6154), DRG 012 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy with CC, relative weight 4.381), DRG 013 (Tracheostomy for Face, Mouth and Neck Diagnoses or Laryngectomy without CC/MCC, relative weight 2.7307), DRG 157 (Dental and Oral Diseases with MCC, relative weight 1.809), DRG 158 (Dental and Oral Diseases with CC, relative weight 0.9366) and DRG 159 (Dental and Oral Diseases without CC/MCC, relative weight 0.6893), in Pre-MDC and MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.