R44.2: Other hallucinations
R44.2, other hallucinations, is listed as a covered diagnosis in 9 Medicare billing and coding articles that apply to 21 HCPCS Level II codes, including G0480 (Drug test(s), definitive, utilizing (1) drug…), G0483 (Drug test(s), definitive, utilizing (1) drug…), G0482 (Drug test(s), definitive, utilizing (1) drug…). The articles come from 6 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 R44.2 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| G0480 | Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms (any type, single or tandem and excluding immunoassays (e.g., ia, eia, elisa, emit, fpia) and enzymatic methods (e.g., alcohol dehydrogenase)), (2) stable isotope or other universally recognized internal standards in all samples (e.g., to control for matrix effects, interferences and variations in signal strength), and (3) method or drug-specific calibration and matrix-matched quality control material (e.g., to control for instrument variations and mass spectral drift); qualitative or quantitative, all sources, includes specimen validity testing, per day; 1-7 drug class(es), including metabolite(s) if performed | Carrier judgment | — | 6 |
| G0483 | Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms (any type, single or tandem and excluding immunoassays (e.g., ia, eia, elisa, emit, fpia) and enzymatic methods (e.g., alcohol dehydrogenase)), (2) stable isotope or other universally recognized internal standards in all samples (e.g., to control for matrix effects, interferences and variations in signal strength), and (3) method or drug-specific calibration and matrix-matched quality control material (e.g., to control for instrument variations and mass spectral drift); qualitative or quantitative, all sources, includes specimen validity testing, per day; 22 or more drug class(es), including metabolite(s) if performed | Carrier judgment | — | 6 |
| G0482 | Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms (any type, single or tandem and excluding immunoassays (e.g., ia, eia, elisa, emit, fpia) and enzymatic methods (e.g., alcohol dehydrogenase)), (2) stable isotope or other universally recognized internal standards in all samples (e.g., to control for matrix effects, interferences and variations in signal strength), and (3) method or drug-specific calibration and matrix-matched quality control material (e.g., to control for instrument variations and mass spectral drift); qualitative or quantitative, all sources, includes specimen validity testing, per day; 15-21 drug class(es), including metabolite(s) if performed | Carrier judgment | — | 6 |
| G0481 | Drug test(s), definitive, utilizing (1) drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including, but not limited to gc/ms (any type, single or tandem) and lc/ms (any type, single or tandem and excluding immunoassays (e.g., ia, eia, elisa, emit, fpia) and enzymatic methods (e.g., alcohol dehydrogenase)), (2) stable isotope or other universally recognized internal standards in all samples (e.g., to control for matrix effects, interferences and variations in signal strength), and (3) method or drug-specific calibration and matrix-matched quality control material (e.g., to control for instrument variations and mass spectral drift); qualitative or quantitative, all sources, includes specimen validity testing, per day; 8-14 drug class(es), including metabolite(s) if performed | Carrier judgment | — | 6 |
| G0659 | Drug test(s), definitive, utilizing drug identification methods able to identify individual drugs and distinguish between structural isomers (but not necessarily stereoisomers), including but not limited to gc/ms (any type, single or tandem) and lc/ms (any type, single or tandem), excluding immunoassays (e.g., ia, eia, elisa, emit, fpia) and enzymatic methods (e.g., alcohol dehydrogenase), performed without method or drug-specific calibration, without matrix-matched quality control material, or without use of stable isotope or other universally recognized internal standard(s) for each drug, drug metabolite or drug class per specimen; qualitative or quantitative, all sources, includes specimen validity testing, per day, any number of drug classes | Carrier judgment | — | 6 |
| G0283 | Electrical stimulation (unattended), to one or more areas for indication(s) other than wound care, as part of a therapy plan of care | Carrier judgment | — | 1 |
| G0152 | Services performed by a qualified occupational therapist in the home health or hospice setting, each 15 minutes | Carrier judgment | — | 1 |
| G0155 | Services of clinical social worker in home health or hospice settings, each 15 minutes | Carrier judgment | — | 1 |
| G0156 | Services of home health/hospice aide in home health or hospice settings, each 15 minutes | Carrier judgment | — | 1 |
| G0299 | Direct skilled nursing services of a registered nurse (rn) in the home health or hospice setting, each 15 minutes | Carrier judgment | — | 1 |
| G0300 | Direct skilled nursing services of a licensed practical nurse (lpn) in the home health or hospice setting, each 15 minutes | Carrier judgment | — | 1 |
| G2187 | Patients with clinical indications for imaging of the head: head trauma | Carrier judgment | — | 1 |
| G2188 | Patients with clinical indications for imaging of the head: new or change in headache above 50 years of age | Carrier judgment | — | 1 |
| G2189 | Patients with clinical indications for imaging of the head: abnormal neurologic exam | Carrier judgment | — | 1 |
| G2190 | Patients with clinical indications for imaging of the head: headache radiating to the neck | Carrier judgment | — | 1 |
| G2191 | Patients with clinical indications for imaging of the head: positional headaches | Carrier judgment | — | 1 |
| G2192 | Patients with clinical indications for imaging of the head: temporal headaches in patients over 55 years of age | Carrier judgment | — | 1 |
| G2193 | Patients with clinical indications for imaging of the head: new onset headache in pre-school children or younger (<6 years of age) | Carrier judgment | — | 1 |
| G2194 | Patients with clinical indications for imaging of the head: new onset headache in pediatric patients with disabilities for which headache is a concern as inferred from behavior | Carrier judgment | — | 1 |
| G2195 | Patients with clinical indications for imaging of the head: occipital headache in children | Carrier judgment | — | 1 |
| G0282 | Electrical stimulation, (unattended), to one or more areas, for wound care other than described in g0281 | Non-covered by Medicare | Not covered | 1 |
Medicare policy articles listing R44.2
- A57077: Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing (First Coast Service Options, Inc. (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L35006, L36393
- A55001: Billing and Coding: Urine Drug Testing (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L34645, L35724, L36029, L36668
- A56915: Billing and Coding: Urine Drug Testing (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L34645, L35724, L36029, L36668
- A59416: Billing and Coding: Urine Drug Testing (Wellpoint Federal (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L34645, L35724, L36029, L36668
- A54799: Billing and Coding: Urine Drug Testing (Palmetto GBA (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L34645, L35724, L36029, L36668
- A56034: Billing and Coding: Nerve Blockade for Treatment of Chronic Pain and Neuropathy (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 2 Level II codes). LCD with the same title: L35456
- A56756: Billing and Coding: Home Health - Psychiatric Care (Palmetto GBA (HHH MAC); 5 Level II codes). LCD with the same title: L34561
- A56818: Billing and Coding: Urine Drug Testing (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 5 Level II codes). LCD with the same title: L34645, L35724, L36029, L36668
- A56612: Billing and Coding: CT of the Head (Palmetto GBA (MAC - Part A, MAC - Part B); 9 Level II codes). LCD with the same title: L34417
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 R44 diagnoses (Other symptoms and signs involving general sensations and perceptions)
Frequently asked questions
Does Medicare cover R44.2 (Other hallucinations)?
Medicare covers items and services, not diagnoses. 9 Medicare billing and coding articles list R44.2 as a covered diagnosis for 21 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 R44.2?
The Level II codes from the policies most specific to this diagnosis are G0480 (Drug test(s), definitive, utilizing (1) drug…, 6 articles); G0483 (Drug test(s), definitive, utilizing (1) drug…, 6 articles); G0482 (Drug test(s), definitive, utilizing (1) drug…, 6 articles); G0481 (Drug test(s), definitive, utilizing (1) drug…, 6 articles); G0659 (Drug test(s), definitive, utilizing drug identification…, 6 articles). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list R44.2?
A57077 (Billing and Coding: Controlled Substance Monitoring and Drugs of Abuse Testing); A55001 (Billing and Coding: Urine Drug Testing); A56915 (Billing and Coding: Urine Drug Testing), and 6 more articles.
What is ICD-10-CM code R44.2?
R44.2 is the ICD-10-CM code for other hallucinations, in category R44 (Other symptoms and signs involving general sensations and perceptions), chapter 18: Symptoms, signs and abnormal findings.
Next steps
- Run a reimbursement report for a device billed under G0480
- Watch G0480 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G0480
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.
Chapter 18: Symptoms, signs and abnormal findings · All diagnoses · HCPCS lookup