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ICD-10-CM 2027

ICD-10 code for dental impaction

K01.1

Impacted teeth

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Impaction, impacted › dental (same or adjacent tooth)”. Page updated September 29, 2026.

About coding dental impaction

The ICD-10-CM code for dental impaction is K01.1 (Impacted teeth).

Within K01 (embedded and impacted teeth), K01.1 is specifically for impacted teeth. Related codes cover embedded teeth (K01.0).

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), DRG 159 (Dental and Oral Diseases without CC/MCC, relative weight 0.6893) and 1 more, in Pre-MDC, MDC 03 (Diseases and Disorders of the Ear, Nose, Mouth and Throat) and MDC 15 (Newborns and Other Neonates with Conditions Originating in the Perinatal Period), 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 dental impaction ICD-10 codes

What is the ICD-10 code for dental impaction?

K01.1 — Impacted teeth.

Is K01.1 billable?

Yes. K01.1 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K01.1 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K01.1 as a principal diagnosis.

Is K01.1 a CC or MCC?

No. K01.1 is neither a CC nor an MCC under MS-DRG v44.0.