L04.0

L04.0: Acute lymphadenitis of face, head and neck

Billable / specific codeICD-10-CM

L04.0 is a billable, specific ICD-10-CM code for acute lymphadenitis of face, head and neck. It is valid for submission on a claim.

Check L04.0 with the rest of the claim: free scrubber

Excludes1 inherited from the categories above L04.0

A category’s note binds every code beneath it.

Written on L04: Acute lymphadenitis

chronic or subacute lymphadenitis, except mesenteric (I88.1)
enlarged lymph nodes (R59.-)
human immunodeficiency virus [HIV] disease resulting in generalized lymphadenopathy (B20)
lymphadenitis NOS (I88.9)
nonspecific mesenteric lymphadenitis (I88.0)

Other codes that can never be billed with L04.0

Their own Excludes1 notes name this code, so the conflict is not listed above.

I88Nonspecific lymphadenitis
R59Enlarged lymph nodes

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Medicare coverage

L04.0 is named in 5 Medicare coverage policies: 5 listing it as supporting medical necessity. Which one applies depends on your Medicare contractor.

A53058Billing and Coding: Home Health Physical Therapy
A53064Billing and Coding: Outpatient Occupational Therapy
A56775Billing and Coding: Magnetic Resonance Angiography
A57204Billing and Coding: MRI and CT Scans of the Head and Neck

Alphabetic index entries that lead here

Infection, infected, infective›cervical gland(lymph)
Abscess›cervical›lymph gland or node
Abscess›neck›lymph gland or node
Adenitis›cervical›acute
Lymphadenitis›acute›face
Lymphadenitis›acute›head
Lymphadenitis›acute›neck

Code history

Unchanged in every release from FY2024 to FY2027.