2027 ICD-10-CM Diagnosis Code P52.1Intraventricular (nontraumatic) hemorrhage, grade 2, of newborn
ICD-10-CM Codes›P00–P96›P50-P61›P52
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Risk Adjusts — HCC 248
- Not Chronic
P52.1 is a billable ICD-10-CM diagnosis code for intraventricular (nontraumatic) hemorrhage, grade 2, of newborn. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 791, 793. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 48 closely related codes. Coders also document this condition as early neonatal intracerebral hemorrhage. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hemorrhagic and hematologic disorders of newborn.
For Medicare Advantage risk adjustment, P52.1 maps to CMS-HCC Category 248 (Intracranial Hemorrhage) under the V28 model, adding a risk factor of about 0.239 for a community, non-dual, aged beneficiary in payment year 2027.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
P52.1 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 2027.
Source: CMS Payment Year 2027 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.
- Early neonatal intracerebral hemorrhage
- Early neonatal non-traumatic intracerebral hemorrhage
- Early neonatal nontraumatic intracranial hemorrhage
- Early neonatal non-traumatic intraventricular hemorrhage
- Neonatal non-traumatic intraventricular hemorrhage
- Non-traumatic intraventricular hemorrhage grade 2 during early neonatal period
- Non-traumatic intraventricular hemorrhage grade 2 during neonatal period
- Non-traumatic intraventricular hemorrhage of fetus and/or neonate
- Perinatal subependymal hemorrhage
- Perinatal subependymal hemorrhage with intraventricular extension
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to P52.1: its own notes plus those printed at P52, block P50-P61, and Chapter 16. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- intracranial hemorrhage due to anoxia or hypoxia
- conditions that have their origin in the fetal or perinatal period (before birth through the first 28 days after birth) even if morbidity occurs later
Applicable To
Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.
- Subependymal hemorrhage with intraventricular extension
- Bleeding into ventricle
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
Notes
General instructions on how these codes are used.
- Codes from this chapter are for use on newborn records only, never on maternal records
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name P52.1, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming P52.1: they are not reported together with it, unless the two conditions are unrelated.
- P10 Intracranial laceration and hemorrhage due to birth injuryintracranial hemorrhage of newborn due to anoxia or hypoxia (P52.-) names P52.-, which includes this code
- P10 Intracranial laceration and hemorrhage due to birth injurynontraumatic intracranial hemorrhage of newborn (P52.-) names P52.-, which includes this code
- P84 Other problems with newbornintracranial hemorrhage due to anoxia or hypoxia (P52.-) names P52.-, which includes this code
Excludes2 2
These codes carry an Excludes2 note naming P52.1: its condition is not part of those codes, and both may be reported when the patient has both.
- P91.82 Neonatal cerebral infarctionintracranial hemorrhage of newborn (P52.-) names P52.-, which includes this code
- Block R70-R79 Abnormal findings on examination of blood, without diagnosis
Code First 1
These codes say to code first a condition named in the note, and P52.1 is one of the conditions named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Hemorrhage, hemorrhagic (concealed) R58
newborn (nontraumatic) See Also: Newborn, affected by, hemorrhage; P52.3
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Intraventricular Brain Hemorrhage
bleeding into the brain's ventricles.
Patient EducationClinical
Brain Diseases
Your brain is the control center of your body. It controls your thoughts, memory, speech, and movement. It regulates the function of many organs. It's part of your nervous system, which also includes your spinal cord and peripheral nerves. The nervous system sends signals between your brain and the rest of the body.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P52.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P52.1Overview
What is the ICD-10 code for intraventricular (nontraumatic) hemorrhage, grade 2, of newborn?
The ICD-10-CM code for intraventricular (nontraumatic) hemorrhage, grade 2, of newborn is P52.1 (sometimes written as P521). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is P52.1 (Intracranial nontraumatic hemorrhage of newborn) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report intraventricular (nontraumatic) hemorrhage, grade 2, of newborn on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does P52.1 group to?
When intraventricular (nontraumatic) hemorrhage, grade 2, of newborn is the principal diagnosis on an inpatient stay, it groups to MS-DRG 793, 791, with relative weights from 4.1073 to 4.2192 depending on complications. Higher weights mean higher Medicare reimbursement.
Is P52.1 a CC or MCC?
CMS lists P52.1 as a CC (complication or comorbidity) for FY 2027. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 48 closely related codes in its exclusion list.
Can P52.1 be reported with a code from P10?
Not as a rule. The Excludes1 note at P52, which applies to P52.1, lists "intracranial hemorrhage due to birth injury (P10.-)". An Excludes1 note means the excluded code is never reported together with this one; the only exception is when the two conditions are unrelated to each other (Official Guidelines, Section I.A.12.a).
What HCC is P52.1?
P52.1 (intraventricular (nontraumatic) hemorrhage, grade 2, of newborn) maps to CMS-HCC Category 248 (Intracranial Hemorrhage), commonly written as HCC 248, in the CMS-HCC V28 model used for Medicare Advantage risk adjustment in payment year 2027. It does not map to any RxHCC in the Part D prescription drug model.
Does P52.1 risk-adjust for Medicare Advantage payment?
Yes. When documented and reported on a Medicare Advantage encounter, P52.1 adds a risk adjustment factor of about 0.239 to the beneficiary's RAF score for a community, non-dual, aged enrollee (published V28 weights range from 0.081 to 0.377 depending on the payment segment). HCC 248 sits at the top of its hierarchy, so no other condition category supersedes it. See the full factor table on the HCC 248 category page.
