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P35.4

P35.4Congenital Zika virus disease

Billable / specific codeICD-10-CM

P35.4 is a billable, specific ICD-10-CM code for congenital zika virus disease. It is valid for submission on a claim.

Use additional code

Add a secondary code to capture the detail described below.

  • code to identify manifestations of congenital Zika virus disease

Other codes that can never be billed with P35.4

These codes carry an Excludes1 note pointing at P35.4. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading P35.4 alone.

Risk adjustment

P35.4 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 P35.4 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 P35.4.

  • Zika NOScongenital
  • Disease, diseasedZika viruscongenital
  • Infection, infected, infectiveZika viruscongenital

Related codes at this level

Codes that share P35. If P35.4 is not quite right, the correct code is usually one of these.

Questions about P35.4

Is P35.4 a billable ICD-10-CM code?
Yes. P35.4 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does P35.4 sit in the tabular list?
Certain conditions originating in the perinatal period (P00-P96), in the block Infections specific to the perinatal period (P35-P39).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.