ICD-10 code for teeth erosion

The ICD-10-CM code for teeth erosion is K03.2 (Erosion of teeth).

Within K03 (other diseases of hard tissues of teeth), K03.2 is specifically for erosion of teeth. Related codes cover excessive attrition of teeth (K03.0), abrasion of teeth (K03.1), 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.