HCC 193: Chronic Inflammatory Demyelinating Polyneuritis and Multifocal Motor Neuropathy ICD-10-CM
CMS-HCC Category 193 (Chronic Inflammatory Demyelinating Polyneuritis and Multifocal Motor Neuropathy) is a payment HCC in the V28 Medicare Advantage risk adjustment model. For payment year 2026 it adds a risk adjustment factor between 0.850 and 1.692 to a beneficiary's RAF score depending on the payment segment (1.692 for a community, non-dual, aged enrollee). 2 ICD-10-CM diagnosis codes map to HCC 193. It sits at the top of its hierarchy: no other condition category supersedes it.
RAF Weight by Payment Segment 7 segments
| Payment Segment | Relative Factor |
|---|---|
| Community, non-dual, aged | 1.692 |
| Community, partial-benefit dual, aged | 1.149 |
| Community, full-benefit dual, aged | 0.957 |
| Community, non-dual, disabled | 1.427 |
| Community, partial-benefit dual, disabled | 0.850 |
| Community, full-benefit dual, disabled | 0.939 |
| Institutional | 0.913 |
A beneficiary is scored in exactly one segment, set by Medicaid (dual) status, aged or disabled entitlement, and residence. Factors are relative weights, not dollar amounts; new-enrollee segments score on demographics only. HCC 193 neither supersedes nor is superseded by any other category, so it always counts alongside unrelated HCCs.
ICD-10-CM Codes That Map to HCC 193 2 codes
- G61.81 Chronic inflammatory demyelinating polyneuritis from V24 HCC 75
- G61.82 Multifocal motor neuropathy from V24 HCC 75
Every code above carries the full HCC 193 weight when documented and reported on a Medicare Advantage encounter. The code link opens its full page with the complete risk adjustment card.
Questions About HCC 193
What is HCC 193 in the CMS-HCC model?
HCC 193 is CMS-HCC Category 193 (Chronic Inflammatory Demyelinating Polyneuritis and Multifocal Motor Neuropathy) in the V28 risk adjustment model. It covers 2 ICD-10-CM diagnosis codes that raise a Medicare Advantage beneficiary's risk score when documented.
What is the RAF weight for HCC 193?
For payment year 2026, HCC 193 adds 1.692 to the RAF score of a community, non-dual, aged beneficiary (living at home, age 65 or over, not also enrolled in Medicaid). The published weights range from 0.850 to 1.692 across the seven payment segments shown above.
Related References
Source: Centers for Medicare & Medicaid Services, Payment Year 2026 risk adjustment mapping and model software releases (CMS-HCC V28), applied to the FY 2026 ICD-10-CM code set. ICD List is not affiliated with CMS.
