Is D40.1 a billable ICD-10 code?

No. D40.1 is a non-billable header code. Use a more specific subcategory for claims.

D40.1 ⚠ Non-billable

Neoplasm of uncertain behavior of testis

Q: What is ICD-10 code D40.1?

ICD-10-CM code D40.1 stands for "Neoplasm of uncertain behavior of testis". It is a non-billable header code in the Neoplasms chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Neoplasms

Code

D40.1

System

ICD-10-CM

Billable

No — use specific code

Effective

FY2026

Chapter

Neoplasms

Source

CMS / CDC NCHS

⚠ Verify before billing. Confirm against the current CMS/NCHS ICD-10-CM files and your payer's rules before claims submission.

Frequently asked questions

What is ICD-10 code D40.1?

ICD-10-CM code D40.1 represents Neoplasm of uncertain behavior of testis. It is a non-billable header code requiring a more specific subcategory in the Neoplasms chapter, effective October 1, 2025 – September 30, 2026.

Is D40.1 billable?

No. D40.1 is a non-billable header. Select a more specific subcategory for claims submission.

What chapter is D40.1 in?

D40.1 belongs to the Neoplasms chapter (C00–D49) of ICD-10-CM.

Related codes in the D40 category

D40 Neoplasm of uncertain behavior of male genital organs Non-billable D40.0 Neoplasm of uncertain behavior of prostate Billable D40.8 Neoplasm of uncertain behavior of other specified male genital organs Billable D40.9 Neoplasm of uncertain behavior of male genital organ, unspecified Billable D40.10 Neoplasm of uncertain behavior of unspecified testis Billable D40.11 Neoplasm of uncertain behavior of right testis Billable D40.12 Neoplasm of uncertain behavior of left testis Billable

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