M18.1
Non-Billable

Is M18.1 Billable?

No — This is a non-billable / non-specific code. Use a more specific sub-code for billing and reimbursement.

Unilateral primary osteoarthritis of first carpometacarpal joint

Billable Alternatives 3 found
M18.10
Unilateral primary osteoarthritis of first carpometacarpal joint, unspecified hand
Billable
M18.11
Unilateral primary osteoarthritis of first carpometacarpal joint, right hand
Billable
M18.12
Unilateral primary osteoarthritis of first carpometacarpal joint, left hand
Billable

Understanding Billable vs Non-Billable Codes

ICD-10-CM codes are classified as either billable/specific or non-billable/non-specific. Billable codes can be used on insurance claims for reimbursement. Non-billable codes are typically parent or header codes that require a more specific sub-code for actual billing.

When a code is non-billable, always look for its child codes (sub-codes) which provide the necessary specificity for reimbursement. Using a non-billable code on a claim may result in denial or delayed payment.

About Billable Status

Billable status indicates whether a code can be used for reimbursement purposes. Non-billable codes are typically header or parent codes that require a more specific sub-code for actual billing and claims. Always verify with the latest payer guidelines.