Is I88.9 a billable ICD-10 code?

Yes. I88.9 (Nonspecific lymphadenitis, unspecified) is billable and can be used for insurance claims. Always verify payer-specific requirements.

I88.9 ✓ Billable

Nonspecific lymphadenitis, unspecified

Q: What is ICD-10 code I88.9?

ICD-10-CM code I88.9 stands for "Nonspecific lymphadenitis, unspecified". It is a billable code in the Diseases of the Circulatory System chapter, effective FY2026 (Oct 1, 2025 – Sep 30, 2026).

ICD-10-CM · FY2026 · Diseases of the Circulatory System

Code

I88.9

System

ICD-10-CM

Billable

Yes — valid for submission

Effective

FY2026

Chapter

Diseases of the Circulatory System

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 I88.9?

ICD-10-CM code I88.9 represents Nonspecific lymphadenitis, unspecified. It is a billable diagnosis code in the Diseases of the Circulatory System chapter, effective October 1, 2025 – September 30, 2026.

Is I88.9 billable?

Yes. I88.9 is a valid billable ICD-10-CM code for insurance claims and clinical documentation.

What chapter is I88.9 in?

I88.9 belongs to the Diseases of the Circulatory System chapter (I00–I99) of ICD-10-CM.

Related codes in the I88 category

I88 Nonspecific lymphadenitis Non-billable I88.0 Nonspecific mesenteric lymphadenitis Billable I88.1 Chronic lymphadenitis, except mesenteric Billable I88.8 Other nonspecific lymphadenitis Billable

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