G99.2 — Myelopathy in diseases classified elsewhere
G99.2 is a billable, specific ICD-10-CM code for myelopathy in diseases classified elsewhere. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Code first
The underlying condition must be sequenced before this code.
Risk adjustment
G99.2 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 182 Spinal Cord Disorders/Injuries0.478 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
G99.2 is named in 13 Medicare coverage policies — 13 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A53057Billing and Coding: Home Health Occupational Therapy
- A53064Billing and Coding: Outpatient Occupational Therapy
- A53065Billing and Coding: Outpatient Physical Therapy
- A54095Billing and Coding: Nerve Conduction Studies and Electromyography
How G99.2 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to G99.2.
- Myelopathy›in›disease classified elsewhere
Related codes at this level
Codes that share G99. If G99.2 is not quite right, the correct code is usually one of these.
Questions about G99.2
- Is G99.2 a billable ICD-10-CM code?
- Yes. G99.2 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does G99.2 sit in the tabular list?
- Diseases of the nervous system (G00-G99), in the block Other disorders of the nervous system (G89-G99).
- What cannot be coded together with G99.2?
- G99.2 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.