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ICD-10-CM 2027

ICD-10 code for allergy to restorative material

K08.55

Allergy to existing dental restorative material

✓ Billable / specific

From the official ICD-10-CM alphabetic index entry “Restorative material (dental) › allergy to”. Page updated September 29, 2026.

About coding allergy to restorative material

The ICD-10-CM code for allergy to restorative material is K08.55 (Allergy to existing dental restorative material).

Within K08.5 (unsatisfactory restoration of tooth), K08.55 is specifically for allergy to existing dental restorative material. Related codes cover unspecified (K08.50), open restoration margins of tooth (K08.51), Unrepairable overhanging of dental restorative materials (K08.52), fractured dental restorative material (K08.53), Contour of existing restoration of tooth biologically incompatible with oral health (K08.54), poor aesthetic of existing restoration of tooth (K08.56) and other unsatisfactory restoration of tooth (K08.59).

Use an additional code to identify the specific type of allergy.

It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.

Common questions about allergy to restorative material ICD-10 codes

What is the ICD-10 code for allergy to restorative material?

K08.55 — Allergy to existing dental restorative material.

Is K08.55 billable?

Yes. K08.55 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can K08.55 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict K08.55 as a principal diagnosis.

Is K08.55 a CC or MCC?

No. K08.55 is neither a CC nor an MCC under MS-DRG v44.0.