M1162 – Patient had encephalitis due to the tetanus, diphtheria or pertussis vaccine any time on or before the patient's 13th birthday
HCPCS Level II code · M codes: Medical Services and Quality Measures
HCPCS codeM1162
- Long description
- Patient had encephalitis due to the tetanus, diphtheria or pertussis vaccine any time on or before the patient's 13th birthday
- Short description
- Pt enceph due to dtp bef 13
- Pricing indicator
00Not separately priced by Part B (bundled, not covered or Part A only)- Medicare coverage
CCarrier judgment – coverage decided by the Medicare contractor- BETOS category
Z2Undefined codes- Added
- January 1, 2023
- Last change
- January 1, 2023 – No change
Frequently asked questions
What is HCPCS code M1162?
M1162 is a HCPCS Level II code for patient had encephalitis due to the tetanus, diphtheria or pertussis vaccine any time on or before the patient's 13th birthday.
Does Medicare cover M1162?
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
- M1154 – Hospice services provided to patient any time during the measurement period
- M1155 – Patient had anaphylaxis due to the pneumococcal vaccine any time during or before the measurement period
- M1156 – Patient received active chemotherapy any time during the measurement period
- M1157 – Patient received bone marrow transplant any time during the measurement period
- M1158 – Patient had history of immunocompromising conditions prior to or during the measurement period
- M1159 – Hospice services provided to patient any time during the measurement period
- M1160 – Patient had anaphylaxis due to the meningococcal vaccine any time on or before the patient's 13th birthday
- M1161 – Patient had anaphylaxis due to the tetanus, diphtheria or pertussis vaccine any time on or before the patient's 13th birthday
- M1163 – Patient had anaphylaxis due to the hpv vaccine any time on or before the patient's 13th birthday
- M1164 – Patients with dementia any time during the patient's history through the end of the measurement period
- M1165 – Patients who use hospice services any time during the measurement period
- M1166 – Pathology report for tissue specimens produced from wide local excisions or re-excisions
- M1167 – In hospice or using hospice services during the measurement period
- M1168 – Patient received an influenza vaccine on or between july 1 of the year prior to the measurement period and june 30 of the measurement period
- M1169 – Documentation of medical reason(s) for not administering influenza vaccine (e.g., prior anaphylaxis due to the influenza vaccine)
- M1170 – Patient did not receive an influenza vaccine on or between july 1 of the year prior to the measurement period and june 30 of the measurement period
Source: CMS HCPCS Level II quarterly file, October 2026. Reference only – check payer policy before billing.