P94.0 — Transient neonatal myasthenia gravis
P94.0 is a billable, specific ICD-10-CM code for transient neonatal myasthenia gravis. 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.
- myasthenia gravis (G70.0)
Other codes that can never be billed with P94.0
These codes carry an Excludes1 note pointing at P94.0. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P94.0 alone.
- G70Myasthenia gravis and other myoneural disorders
Risk adjustment
P94.0 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How P94.0 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 P94.0.
- Myasthenia›gravis›neonatal, transient
Related codes at this level
Codes that share P94. If P94.0 is not quite right, the correct code is usually one of these.
Questions about P94.0
- Is P94.0 a billable ICD-10-CM code?
- Yes. P94.0 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does P94.0 sit in the tabular list?
- Certain conditions originating in the perinatal period (P00-P96), in the block Other disorders originating in the perinatal period (P90-P96).
- What cannot be coded together with P94.0?
- P94.0 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.