M1184 Documentation of medical reason(s) for not prescribing or administering corticosteroid or immunosuppressant treatment (e.g., allergy, intolerance, infectious etiology, pancreatic insufficiency, hyperthyroidism, prior bowel surgical interventions, celiac disease, receiving other medication, awaiting diagnostic workup results for alternative etiologies, other medical reasons/contraindication)

M1184 is the HCPCS Level II code for Documentation of medical reason(s) for not prescribing or administering corticosteroid or immunosuppressant treatment (e.g., allergy, intolerance, infectious etiology, pancreatic insufficiency, hyperthyroidism, prior bowel surgical interventions, celiac disease, receiving other medication, awaiting diagnostic workup results for alternative etiologies, other medical reasons/contraindication) (2026). It belongs to Section M — Medical Services. Under Medicare, its coverage status is: Carrier judgment. Part B pricing methodology: Not separately priced by Part B.

Classification & CMS Attributes

Section

M: Medical Services

Medicare Coverage

Carrier judgment (code C)

Part B Pricing

Not separately priced by Part B (indicator 00)

Type of Service

Medical care

Effective Date

2023-01-01

2026 Maintenance

No change this year

References

• CMS — HCPCS Level II Coding, 2026 Alpha-Numeric Update
• CMS — HCPCS Quarterly Update Files

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M1184 — Documentation of medical reason(s) for not prescribing or administering corticosteroid or immunosuppressant treatment (e.g., allergy, intolerance, infectious etiology, pancreatic insufficiency, hyperthyroidism, prior bowel surgical interventions, celiac disease, receiving other medication, awaiting diagnostic workup results for alternative etiologies, other medical reasons/contraindication). ICD-10 Coding Pro (HCPCS Level II 2026). https://icd10codingpro.com/hcpcs-codes/M1184

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