QA0-QA1 — Genetic disorders, not elsewhere classified
Codes in range
18
No clinical group
5
A period cannot be grouped from these.
Barred as primary
0
CMS rejects these in the primary position.
Where these codes group
13 of the 18 codes in QA0-QA1 group to Neuro Rehabilitation. A further 5 are assigned no clinical group at all, which means a 30-day period cannot be grouped from them.
Code families in QA0-QA1
One page per three-character family: every code in it, whether it can lead a claim, its clinical group and comorbidity subgroup.
Every code in QA0-QA1
Descriptions are CMS’s own, abbreviated as CMS abbreviates them.
| Code | Description | Clinical group | Primary position |
|---|---|---|---|
| QA00101 | SCN2A-related neurodevelopmental disorder | B | Can lead a claim |
| QA00102 | CACNA1A-related neurodevelopmental disorder | B | Can lead a claim |
| QA00109 | Neurodev disord rel to patho var in other ion channel gene | B | Can lead a claim |
| QA0011 | Neurodev disord, rel to patho var in glutamate recept genes | B | Can lead a claim |
| QA0012 | Neurodev disord, related to patho var in other recept genes | B | Can lead a claim |
| QA00131 | SLC6A1-related disorder | B | Can lead a claim |
| QA00139 | Neurodev dis,rel to patho var in oth trnsper or sol car gene | B | Can lead a claim |
| QA00141 | Syntaxin-binding protein 1-related disorder | B | Can lead a claim |
| QA00142 | DLG4-related synaptopathy | B | Can lead a claim |
| QA00149 | Neurodev disord, rel to patho var in other synapse rel gene | B | Can lead a claim |
| QA00151 | FOXG1 syndrome | B | Can lead a claim |
| QA00159 | Neurodev dis, rel to oth genes assoc w txn & gene expression | B | Can lead a claim |
| QA08 | Other neurodev dis rel to patho var in other specific genes | B | Can lead a claim |
| QA171 | Lynch syndrome | None | Cannot lead a claim |
| QA1790 | Familial cancer syndrome with pathogenic BRCA1 mutation | None | Cannot lead a claim |
| QA1791 | Familial cancer syndrome with pathogenic BRCA2 mutation | None | Cannot lead a claim |
| QA1792 | Li Fraumeni syndrome | None | Cannot lead a claim |
| QA1798 | Other inherited neoplm predisposition synd of mult systems | None | Cannot lead a claim |
Source: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.