P27.9 — Unspecified chronic respiratory disease originating in the perinatal period
P27.9 is a billable, specific ICD-10-CM code for unspecified chronic respiratory disease originating in the perinatal period. It is valid for submission on a claim.
Risk adjustment
P27.9 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 213 Cardio-Respiratory Failure and Shock0.370 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
P27.9 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.
- A56580Billing and Coding: Computerized Axial Tomography (CT), Thorax
How P27.9 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 P27.9.
- Disease, diseased›respiratory›chronic NOS›newborn
Related codes at this level
Codes that share P27. If P27.9 is not quite right, the correct code is usually one of these.
Questions about P27.9
- Is P27.9 a billable ICD-10-CM code?
- Yes. P27.9 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does P27.9 sit in the tabular list?
- Certain conditions originating in the perinatal period (P00-P96), in the block Respiratory and cardiovascular disorders specific to the perinatal period (P19-P29).