ICD-10 code for occlusal wear

The ICD-10-CM code for occlusal wear is K03.0 (Excessive attrition of teeth).

Within K03 (other diseases of hard tissues of teeth), K03.0 is specifically for excessive attrition of teeth. Related codes cover abrasion of teeth (K03.1), erosion of teeth (K03.2), pathological resorption of teeth (K03.3), Hypercementosis (K03.4), ankylosis of teeth (K03.5), deposits [accretions] on teeth (K03.6), posteruptive color changes of dental hard tissues (K03.7), other specified diseases of hard tissues of teeth (K03.8) and 1 more.

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.