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Z98.3

Z98.3Post therapeutic collapse of lung status

Billable / specific codeICD-10-CMPOA exempt

Z98.3 is a billable, specific ICD-10-CM code for post therapeutic collapse of lung status. It is valid for submission on a claim.

Code first

The underlying condition must be sequenced before this code.

  • underlying disease

Other codes that can never be billed with Z98.3

These codes carry an Excludes1 note pointing at Z98.3. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading Z98.3 alone.

Risk adjustment

Z98.3 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 Z98.3 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 Z98.3.

  • Postoperativepneumothorax, therapeutic
  • Postsurgery statuspneumothorax, therapeutic
  • Statuspneumothorax, therapeutic
  • Statuspostoperative NECpneumothorax, therapeutic
  • Statuspostsurgical NECpneumothorax, therapeutic

Related codes at this level

Codes that share Z98. If Z98.3 is not quite right, the correct code is usually one of these.

Questions about Z98.3

Is Z98.3 a billable ICD-10-CM code?
Yes. Z98.3 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does Z98.3 sit in the tabular list?
Factors influencing health status and contact with health services (Z00-Z99), in the block Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
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.