M1142 — Emergent cases
M1142 is a HCPCS Level II code for emergent cases. It belongs to the Medical Services section. Whether Medicare pays it depends on the coverage rule below.
Medicare coverage: Carrier judgment
Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
From the coverage field of the CMS Alpha-Numeric HCPCS File, release 2026Q3-Jul. This states Medicare’s position on the code, not on your particular claim.
Physician fee schedule statusM
Measurement code. Used for reporting purposes only; never paid.
Global period: XXX
Want the dollar amount for your locality? The fee calculator applies your GPCI and the current conversion factor.
The CMS record for M1142
- Long descriptor
- Emergent cases
- Short descriptor
- Emerge cases
- Added
- January 1, 2020
- BETOS
- Z2
- Pricing indicator
- 00 — Not priced by Part B
The official wording. This is what the code means.
CMS's 28-character form, which is what shows up on a remittance advice.
When CMS introduced the code.
Berenson-Eggers Type of Service — CMS's own analytic grouping.
Service not separately priced by Part B — not covered, bundled into another service, or used by Part A only.
Codes adjacent to M1142
HCPCS has no hierarchy — related items simply sit next to each other in the numbering. If M1142 is not quite right, the correct code is very often within a few positions of it.
- M1134Ongoing care not possible because the patient self-discharged early (e.g., financial or insurance reasons, transportation problems, or reason unknown)
- M1135The start of an episode of care documented in the medical record
- M1136The start of an episode of care documented in the medical recordterminated
- M1137Documentation stating patient has a diagnosis of a degenerative neurological condition such as als, ms, or parkinson's diagnosed at any time before or during the episode of careterminated
- M1138Ongoing care not indicated, patient seen only 1-2 visits (e.g., home program only, referred to another provider or facility, consultation only)terminated
- M1139Ongoing care not indicated, patient self-discharged early and seen only 1-2 visits (e.g., financial or insurance reasons, transportation problems, or reason unknown)terminated
- M1140Ongoing care not indicated, patient discharged after only 1-2 visits due to specific medical events, documented in the medical record that make the treatment episode impossible such as the patient becomes hospitalized or scheduled for surgery for surgery or hospitalizedterminated
- M1141Functional status was not measured by the oxford knee score (oks) or the knee injury and osteoarthritis outcome score joint replacement (koos, jr.) at one year (9 to 15 months) postoperatively
- M1143Initiated episode of rehabilitation therapy, medical, or chiropractic care for neck impairment
- M1144Ongoing care not indicated, patient seen only 1-2 visits (e.g., home program only, referred to another provider or facility, consultation onlyterminated
- M1145Most favored nation (mfn) model drug add-on amount, per dose, (do not bill with line items that have the jw modifier)terminated
- M1146Ongoing care not clinically indicated because the patient needed a home program only, referral to another provider or facility, or consultation only, as documented in the medical record
- M1147Ongoing care not medically possible because the patient was discharged early due to specific medical events, documented in the medical record, such as the patient became hospitalized or scheduled for surgery
- M1148Ongoing care not possible because the patient self-discharged early (e.g., financial or insurance reasons, transportation problems, or reason unknown)
- M1149Patient unable to complete the neck fs prom at initial evaluation and/or discharge due to blindness, illiteracy, severe mental incapacity or language incompatibility, and an adequate proxy is not available
- M1150Current or prior left ventricular ejection fraction (lvef) less than or equal to 40% or documentation of moderately or severely depressed left ventricular systolic function
Questions about M1142
What is HCPCS code M1142?
M1142 is a HCPCS Level II code for emergent cases. It sits in the Medical Services section.
Does Medicare cover M1142?
The CMS HCPCS file marks M1142 as "Carrier judgment". Coverage is decided by your Medicare contractor, not by national policy. Whether this is paid depends on the LCD for your jurisdiction and on what the documentation supports.
How is M1142 paid under the physician fee schedule?
M1142 carries PFS status code M. Measurement code. Used for reporting purposes only; never paid.