QA0.0102 vs QA0.0109
QA0.0102 (CACNA1A-related neurodevelopmental disorder) compared with QA0.0109 (Neurodevelopmental disorder related to pathogenic variant in other ion channel gene), from the official CMS tabular data.
Current data releases:ICD-10-CM FY2027 · ICD-10-PCS FY2027 · HCPCS October 2026 · MS-DRG v44 · Medicare Code Editor v44.0 · MUE Q4 2026 · NCD code lists 2026-01 · LCD export September 20, 2026 · All releases and sources
Summary
No tabular note links these codes. Both belong to category QA0, and nothing in the tabular list prevents reporting each when it is documented.
Registry fact- What is different?
The conditions named.QA0.0102 is “CACNA1A-related neurodevelopmental disorder”; QA0.0109 is “Neurodevelopmental disorder related to pathogenic variant in other ion channel gene”.
Registry fact
- Can these codes be reported together?
No instruction prevents it.No note in either entry names the other. Both belong to category QA0; each may be reported when its own documentation is present.
Registry fact
- Is there an Excludes1 relationship?
None.Neither entry carries an Excludes1 note that names the other code.
Official rule
- Is there an Excludes2 relationship?
None.Neither entry carries an Excludes2 note that names the other code.
Official rule
- Is one more specific?
No.Neither is a subdivision of the other, and neither title is the unspecified form; they describe different conditions within category QA0.
Registry fact
- Is one a parent or header code?
No.Both are billable codes, and neither contains the other.
Registry fact
- Are there sequencing instructions?
None.Neither entry carries a Code First or Use Additional Code note that names the other.
Official rule
- Are there other coding relationships?
None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.
MedCoder-derived
Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels
Can these codes be reported together?
Yes, when each is documented. QA0.0102 and QA0.0109 both belong to category QA0.
No Excludes1/Excludes2 relationship exists between these codes in the official tabular list. The code titles state what each one covers, and the documentation decides which applies.
Side by side
| QA0.0102CACNA1A-related neurodevelopmental disorder | QA0.0109Neurodevelopmental disorder related to pathogenic variant in other ion channel gene | |
|---|---|---|
| Billing status | Billable | Billable |
| Classification | Q00-QA1 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-QA1) | Q00-QA1 — Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-QA1) |
| Definition | CACNA1A-related neurodevelopmental disorder is a billable ICD-10-CM diagnosis code (QA0.0102). | Neurodevelopmental disorder related to pathogenic variant in other ion channel gene is a billable ICD-10-CM diagnosis code (QA0.0109). |
| Includes | — | SCN8A-related neurodevelopmental disorder |
| Code also | , if applicable, any associated conditions, such as: attention-deficit hyperactivity disorders (F90.-) autism spectrum disorder (F84.0) developmental and epileptic encephalopathy (G93.45) epilepsy, by specific type (G40.-) intellectual disabilities (F70-F79) pervasive developmental disorders (F84.-) | , if applicable, any associated conditions, such as: attention-deficit hyperactivity disorders (F90.-) autism spectrum disorder (F84.0) developmental and epileptic encephalopathy (G93.45) epilepsy, by specific type (G40.-) intellectual disabilities (F70-F79) pervasive developmental disorders (F84.-) |
Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.
Derived from the official CMS ICD-10-CM tabular data (FY2027). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources