ICD-10-CM 2027
ICD-10 code for dental roots resorption
From the official ICD-10-CM alphabetic index entry “Resorption › dental (roots)”. Page updated September 29, 2026.
About coding dental roots resorption
The ICD-10-CM code for dental roots resorption is K03.3 (Pathological resorption of teeth). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on K03.3.
Within K03 (other diseases of hard tissues of teeth), K03.3 is specifically for pathological resorption of teeth. Related codes cover excessive attrition of teeth (K03.0), abrasion of teeth (K03.1), erosion of teeth (K03.2), 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.
More specific dental roots resorption codes (official index)
- alveoli M26.79 — Other specified alveolar anomalies
Common questions about dental roots resorption ICD-10 codes
What is the ICD-10 code for dental roots resorption?
- K03.3 — Pathological resorption of teeth. More specific codes apply when the documentation supports them: M26.79.
What is the ICD-10 code for alveoli dental roots resorption?
- M26.79 — Other specified alveolar anomalies.
Is K03.3 billable?
- Yes. K03.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can K03.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict K03.3 as a principal diagnosis.
Is K03.3 a CC or MCC?
- No. K03.3 is neither a CC nor an MCC under MS-DRG v44.0.