2026 ICD-10-CM Diagnosis Code P27.1Bronchopulmonary dysplasia originating in the perinatal period
ICD-10-CM Codes›P00–P96›P19-P29›P27
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- Risk Adjusts — HCC 213
- Not Chronic
P27.1 is a billable ICD-10-CM diagnosis code for bronchopulmonary dysplasia originating in the perinatal period. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 196 through 198. As a secondary diagnosis, it counts as a major complication or comorbidity (MCC) and places an inpatient stay in the highest severity level of its MS-DRG family. It does not count, however, when the principal diagnosis is one of 78 closely related codes. Coders also document this condition as bronchopulmonary dysplasia of newborn. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Respiratory perinatal condition.
For Medicare Advantage risk adjustment, P27.1 maps to CMS-HCC Category 213 (Cardio-Respiratory Failure and Shock) under the V28 model, adding a risk factor of about 0.370 for a community, non-dual, aged beneficiary in payment year 2026.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
P27.1 maps to a payment category in the CMS-HCC model used to risk-adjust Medicare Advantage payments. Weights are the published community factors for payment year 2026.
Source: CMS Payment Year 2026 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Bronchopulmonary dysplasia of newborn
- Chronic respiratory disease originating in perinatal period
- Mild bronchopulmonary dysplasia of newborn
- Moderate bronchopulmonary dysplasia of newborn
- Severe bronchopulmonary dysplasia of newborn
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Dysplasia See Also: Anomaly;
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Bronchial Disorders
When you breathe in, the air travels down through your trachea (windpipe). It then goes through two tubes to your lungs. These tubes are your bronchi. Bronchial disorders can make it hard for you to breathe.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P27.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P27.1Overview
What is the ICD-10 code for bronchopulmonary dysplasia originating in the perinatal period?
The ICD-10-CM code for bronchopulmonary dysplasia originating in the perinatal period is P27.1 (sometimes written as P271). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is P27.1 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report bronchopulmonary dysplasia originating in the perinatal period on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does P27.1 group to?
When bronchopulmonary dysplasia originating in the perinatal period is the principal diagnosis on an inpatient stay, it groups to MS-DRG 196, 197, 198, with relative weights from 0.7162 to 1.8872 depending on complications. Higher weights mean higher Medicare reimbursement.
Is P27.1 a CC or MCC?
CMS lists P27.1 as an MCC (major complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it places the inpatient stay in the highest-weighted DRG of its severity family. It does not count when the principal diagnosis is one of the 78 closely related codes in its exclusion list.
What is the ICD-9 equivalent of P27.1?
Under the General Equivalence Mappings, bronchopulmonary dysplasia originating in the perinatal period converts to ICD-9-CM 770.7 (perinatal chr resp dis). The mapping is approximate, so confirm the match fits the documentation.
What HCC is P27.1?
P27.1 (bronchopulmonary dysplasia originating in the perinatal period) maps to CMS-HCC Category 213 (Cardio-Respiratory Failure and Shock), commonly written as HCC 213, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2026. It does not map to any RxHCC in the Part D prescription drug model.
Does P27.1 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, P27.1 adds a risk adjustment factor of about 0.370 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.258 to 0.662 depending on the payment segment). A more severe related category (HCC 211 and HCC 212) supersedes it when both are reported. See the full factor table on the HCC 213 category page.
