M40.5

Non-billable

Lordosis, unspecified

M40.5 is the ICD-10-CM code for Lordosis, unspecified. It is a non-billable category code — use a more specific child code such as M40.50 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M40
Subcodes
4
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

No additional coding notes for this code.

Frequently asked questions

What is ICD-10 code M40.5?
M40.5 is the ICD-10-CM code for "Lordosis, unspecified". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M40.5 a billable code?
No — M40.5 is a non-billable header code. Use a more specific child code (such as M40.50) for billing.
What are the subcodes of M40.5?
M40.5 has 4 more specific child codes, including M40.50, M40.55, M40.56.

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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