ICD-10-CM 2027
ICD-10 code for Disto-occlusion
From the official ICD-10-CM alphabetic index entry “Disto-occlusion (Division I) (Division II)”. Page updated September 29, 2026.
About coding Disto-occlusion
The ICD-10-CM code for Disto-occlusion is M26.212 (Malocclusion, Angle's class II).
Within M26.21 (malocclusion, Angle's class), M26.212 is specifically for malocclusion, Angle's class II. Related codes cover I (M26.211), III (M26.213) and unspecified (M26.219).
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.
Common questions about Disto-occlusion ICD-10 codes
What is the ICD-10 code for Disto-occlusion?
- M26.212 — Malocclusion, Angle's class II.
Is M26.212 billable?
- Yes. M26.212 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can M26.212 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict M26.212 as a principal diagnosis.
Is M26.212 a CC or MCC?
- No. M26.212 is neither a CC nor an MCC under MS-DRG v44.0.