I88: Nonspecific lymphadenitis
Codes under I88 (Nonspecific lymphadenitis). A ✓ marks a billable (fully specified) code; category codes without a ✓ are not billable on their own.
| Code | Description | Billable |
|---|---|---|
| I88.0 | Nonspecific mesenteric lymphadenitis | ✓ |
| I88.0 | Nonspecific mesenteric lymphadenitis | ✓ |
| I88.1 | Chronic lymphadenitis, except mesenteric | ✓ |
| I88.1 | Chronic lymphadenitis, except mesenteric | ✓ |
| I88.8 | Other nonspecific lymphadenitis | ✓ |
| I88.8 | Other nonspecific lymphadenitis | ✓ |
| I88.9 | Nonspecific lymphadenitis, unspecified | ✓ |
| I88.9 | Nonspecific lymphadenitis, unspecified | ✓ |
Frequently asked questions
What is ICD-10-CM code I88?
I88 is an ICD-10-CM category covering Nonspecific lymphadenitis. It contains 8 more specific diagnosis codes, 8 of which are billable.
Is I88 a billable code?
No — I88 is a category header and isn't billable on its own. Code to the highest level of specificity using one of its subcodes (for example I88.0 — Nonspecific mesenteric lymphadenitis). 8 of the 8 codes under I88 are billable.
What codes fall under I88?
I88 includes I88.0, I88.0, I88.1, I88.1, I88.8, plus 3 more. See the full list with descriptions and billable status above.
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Informational only, not coding or medical advice. Verify against the official ICD-10-CM (FY2026) and your payer's guidelines.
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