D18.1 Lymphangioma, any site

Billable ICD-10-CM code, FY2026.

Applies from D18 Hemangioma and lymphangioma, any site

Excludes1 (never code together)

• benign neoplasm of glomus jugulare (D35.6)
• blue or pigmented nevus (D22.-)
• nevus NOS (D22.-)
• vascular nevus (Q82.5)

MS-DRG index

Defines the logic of DRG(s) 814-816 in MDC 16.

Approximate ICD-9-CM (GEMs)

• 228.1 Lymphangioma, any site

Code annotations containing back-references to D18.1

Back-references to D18.1

• Type 1 Excludes: D21 Other benign neoplasms of connective and other soft tissue ("lymphangioma (D18.1)")
• Type 1 Excludes: D36.0 Benign neoplasm of lymph nodes ("lymphangioma (D18.1)")

Back-references to D18

• Type 1 Excludes: D21 Other benign neoplasms of connective and other soft tissue ("benign neoplasm of vascular tissue (D18.-)")
• Type 2 Excludes: Q27 Other congenital malformations of peripheral vascular system ("hemangioma and lymphangioma (D18.-)")

Diagnosis Index entries for D18.1

• Cyst (colloid) (mucous) (simple) (retention) › lymphangiomatous
• Hemolymphangioma
• Hygroma (congenital) (cystic)
• Lymphangioendothelioma
• Lymphangioma
• Lymphangioma › capillary
• Lymphangioma › cavernous
• Lymphangioma › cystic
• Lymphangiomyoma
• Nevus › lymphatic

Nearby codes

• D18.00 Hemangioma unspecified site
• D18.01 Hemangioma of skin and subcutaneous tissue
• D18.02 Hemangioma of intracranial structures
• D18.03 Hemangioma of intra-abdominal structures
• D18.09 Hemangioma of other sites
• D18.1 Lymphangioma, any site (this code)