M26.22 – Open occlusal relationship

ICD-10-CM 2027 diagnosis code · Dentofacial anomalies [including malocclusion] and other disorders of jaw

Non-billable header

ICD-10-CM code M26.22

Code: M26.22 (claims format: M2622)
Description: Open occlusal relationship
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M26-M27 Dentofacial anomalies [including malocclusion] and other disorders of jaw
Parent codes: M26 › M26.2

Billable codes under M26.22

M26.22 is a header code and cannot be used on claims. Choose the most specific code:

M26.220 – Open anterior occlusal relationshipBillable
M26.221 – Open posterior occlusal relationshipBillable

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block M26-M27

Excludes1 (not coded here):

hemifacial atrophy or hypertrophy (Q67.4)
unilateral condylar hyperplasia or hypoplasia (M27.8)

Related codes in M26.2

M26.20 – Unspecified anomaly of dental arch relationshipBillable
M26.21 – Malocclusion, Angle's classHeader
M26.23 – Excessive horizontal overlapBillable
M26.24 – Reverse articulationBillable
M26.25 – Anomalies of interarch distanceBillable
M26.29 – Other anomalies of dental arch relationshipBillable

Frequently asked questions

What is ICD-10 code M26.22?

M26.22 is the ICD-10-CM code for open occlusal relationship, in the block M26-M27 (Dentofacial anomalies [including malocclusion] and other disorders of jaw).

Is M26.22 a billable code?

No. M26.22 is a header code with more specific child codes; report one of the billable codes listed above.

What category does M26.22 belong to?

It belongs to category M26 – Dentofacial anomalies [including malocclusion].

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.