M1181 – Grade 2 or above diarrhea and/or grade 2 or above colitis

HCPCS Level II code · M codes: Medical Services and Quality Measures

Active code Carrier judgment

HCPCS codeM1181
Long description
Grade 2 or above diarrhea and/or grade 2 or above colitis
Short description
Gr 2 or> dia or gr2 or> col
Pricing indicator
00 Not separately priced by Part B (bundled, not covered or Part A only)
Medicare coverage
C Carrier judgment – coverage decided by the Medicare contractor
BETOS category
Z2 Undefined codes
Added
January 1, 2023
Last change
January 1, 2023 – No change

Frequently asked questions

What is HCPCS code M1181?

M1181 is a HCPCS Level II code for grade 2 or above diarrhea and/or grade 2 or above colitis.

Does Medicare cover M1181?

The HCPCS file lists coverage code C: Carrier judgment – coverage decided by the Medicare contractor. Coverage and payment also depend on local coverage determinations and the patient’s plan.

Nearby M codes

Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.