Is P90 a billable ICD-10-CM code?

Yes. P90 is a billable, specific ICD-10-CM code and is valid for submission on a claim.

Where does P90 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 P90?

P90 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.

P90

P90 — Convulsions of newborn

Billable / specific codeICD-10-CM

P90 is a billable, specific ICD-10-CM code for convulsions of newborn. 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.

benign myoclonic epilepsy in infancy (G40.3-)
benign neonatal convulsions (familial) (G40.3-)

Other codes that can never be billed with P90

These codes carry an Excludes1 note pointing at P90. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P90 alone.

R56Convulsions, not elsewhere classified
G40Epilepsy and recurrent seizures

Risk adjustment

P90 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

HCC 201 Seizure Disorders and Convulsions0.245 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

P90 is named in 1 Medicare coverage policy — 1 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

A57204Billing and Coding: MRI and CT Scans of the Head and Neck

How P90 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 P90.

Convulsions›infantile
Convulsions›newborn
Fit›newborn
Newborn›convulsion
Newborn›seizure
Seizure›newborn

Questions about P90

Is P90 a billable ICD-10-CM code?: Yes. P90 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does P90 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 P90?: P90 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.