D18.1: Lymphangioma, any site
D18.1, lymphangioma, any site, is listed as a covered diagnosis in 4 Medicare billing and coding articles that apply to 17 HCPCS Level II codes, including G0105 (Colorectal cancer screening; colonoscopy on individual at…), G9998 (Documentation of medical reason(s) for an interval of less…), G9999 (Documentation of system reason(s) for an interval of less…). 4 of these codes have a 2026 DMEPOS fee schedule amount; E0783 pays $9,917.33 to $11,667.45 (NU) depending on the state. The articles come from 2 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with D18.1 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| G0105 | Colorectal cancer screening; colonoscopy on individual at high risk | Special coverage instructions apply | — | 1 |
| G9998 | Documentation of medical reason(s) for an interval of less than 3 years since the last colonoscopy (e.g., last colonoscopy incomplete, last colonoscopy had inadequate prep, piecemeal removal of adenomas, or sessile serrated polyps >= 20 mm in size, last colonoscopy found greater than 10 adenomas, lower gastrointestinal bleeding, or patient at high risk for colon cancer due to underlying medical history ([i.e. crohn's disease, ulcerative colitis, personal or family history of colon cancer, hereditary colorectal cancer syndromes]) | Carrier judgment | — | 1 |
| G9999 | Documentation of system reason(s) for an interval of less than 3 years since the last colonoscopy (e.g., unable to locate previous colonoscopy report, patient cannot provide precise date or details from previous colonoscopy, previous colonoscopy report was incomplete) | Carrier judgment | — | 1 |
| G0238 | Therapeutic procedures to improve respiratory function, other than described by g0237, one on one, face to face, per 15 minutes (includes monitoring) | Carrier judgment | — | 1 |
| G0237 | Therapeutic procedures to increase strength or endurance of respiratory muscles, face to face, one on one, each 15 minutes (includes monitoring) | Carrier judgment | — | 1 |
| G0239 | Therapeutic procedures to improve respiratory function or increase strength or endurance of respiratory muscles, two or more individuals (includes monitoring) | Carrier judgment | — | 1 |
| E0783 | Infusion pump system, implantable, programmable (includes all components, e.g., pump, catheter, connectors, etc.) | Special coverage instructions apply | $9,917.33–$11,667.45 (NU) | 1 |
| E0786 | Implantable programmable infusion pump, replacement (excludes implantable intraspinal catheter) | Special coverage instructions apply | $10,969.75–$11,380.88 (NU) | 1 |
| E0782 | Infusion pump, implantable, non-programmable (includes all components, e.g., pump, catheter, connectors, etc.) | Special coverage instructions apply | $5,200.92–$6,118.73 (NU) | 1 |
| E0785 | Implantable intraspinal (epidural/intrathecal) catheter used with implantable infusion pump, replacement | Special coverage instructions apply | $572.38–$673.39 (KF) | 1 |
| J7999 | Compounded drug, not otherwise classified | Special coverage instructions apply | — | 1 |
| J2278 | Injection, ziconotide, 1 microgram | Special coverage instructions apply | — | 1 |
| J2274 | Injection, morphine sulfate, preservative-free for epidural or intrathecal use, 10 mg | Special coverage instructions apply | — | 1 |
| A4220 | Refill kit for implantable infusion pump | Special coverage instructions apply | — | 1 |
| J9200 | Injection, floxuridine, 500 mg | Special coverage instructions apply | — | 1 |
| A9585 | Injection, gadobutrol, 0.1 ml | Carrier judgment | — | 1 |
| Q9953 | Injection, iron-based magnetic resonance contrast agent, per ml | Special coverage instructions apply | — | 1 |
Medicare policy articles listing D18.1
- A56632: Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy (Palmetto GBA (MAC - Part A, MAC - Part B); 3 Level II codes). LCD with the same title: L34005, L34454
- A57224: Billing and Coding: Respiratory Care (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 3 Level II codes). LCD with the same title: L34149
- A56695: Billing and Coding: Implantable Infusion Pump (Palmetto GBA (MAC - Part B); 9 Level II codes). LCD with the same title: L33461
- A57206: Billing and Coding: Lumbar MRI (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L34220
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other D18 diagnoses (Hemangioma and lymphangioma, any site)
Frequently asked questions
Does Medicare cover D18.1 (Lymphangioma, any site)?
Medicare covers items and services, not diagnoses. 4 Medicare billing and coding articles list D18.1 as a covered diagnosis for 17 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 D18.1?
The Level II codes from the policies most specific to this diagnosis are G0105 (Colorectal cancer screening; colonoscopy on individual at…, 1 article); G9998 (Documentation of medical reason(s) for an interval of less…, 1 article); G9999 (Documentation of system reason(s) for an interval of less…, 1 article); G0238 (Therapeutic procedures to improve respiratory function…, 1 article); G0237 (Therapeutic procedures to increase strength or endurance…, 1 article). Code choice depends on the item supplied; check each code's descriptor.
What does Medicare pay for equipment billed with D18.1?
Under the 2026 DMEPOS fee schedule (non-rural state fees): E0783 $9,917.33 to $11,667.45 (NU); E0786 $10,969.75 to $11,380.88 (NU); E0782 $5,200.92 to $6,118.73 (NU); E0785 $572.38 to $673.39 (KF). Medicare pays 80% of the allowed amount after the Part B deductible.
Which Medicare policy articles list D18.1?
A56632 (Billing and Coding: Colonoscopy/Sigmoidoscopy/Proctosigmoidoscopy); A57224 (Billing and Coding: Respiratory Care); A56695 (Billing and Coding: Implantable Infusion Pump), and 1 more article.
What is ICD-10-CM code D18.1?
D18.1 is the ICD-10-CM code for lymphangioma, any site, in category D18 (Hemangioma and lymphangioma, any site), chapter 2: Neoplasms.
Next steps
- Run a reimbursement report for a device billed under G0105
- Watch G0105 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G0105
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.