ICD-10 code for maxilla atrophy

The ICD-10-CM code for maxilla atrophy is K08.20 (Unspecified atrophy of edentulous alveolar ridge). The official index lists 3 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on K08.20.

Within K08.2, choose K08.20 (Unspecified atrophy of edentulous alveolar ridge) only when documentation doesn't support a more specific option: minimal atrophy of the mandible (K08.21), moderate atrophy of the mandible (K08.22), severe atrophy of the mandible (K08.23), minimal atrophy of maxilla (K08.24), moderate atrophy of the maxilla (K08.25) and severe atrophy of the maxilla (K08.26).

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.