2027 ICD-10-CM Diagnosis Code P61.0Transient neonatal thrombocytopenia
ICD-10-CM Codes›P00–P96›P50-P61›P61
- Billable — Valid for Submission
- MCC — Major Complication or Comorbidity
- Not Chronic
P61.0 is a billable ICD-10-CM diagnosis code for transient neonatal thrombocytopenia. 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 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 28 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Hemorrhagic and hematologic disorders of newborn.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Acquired thrombocytopenia
- Allosensitization
- Autoimmune neonatal thrombocytopenia
- Macrothrombocytopenia with mitral valve insufficiency
- Neonatal alloimmune thrombocytopenia
- Neonatal thrombocytopenia
- Neonatal thrombocytopenia due to exchange transfusion
- Neonatal thrombocytopenia due to idiopathic maternal thrombocytopenia
- Perinatal thrombocytopenia
- Platelet alloimmunization
- Thrombocytopenic disorder
- Thrombocytopenic purpura
- Transient neonatal thrombocytopenia
- Transient neonatal thrombocytopenia due to exchange transfusion
- Transient neonatal thrombocytopenia due to idiopathic maternal thrombocytopenia
- Transient neonatal thrombocytopenia due to isoimmunization
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to P61.0: its own notes plus those printed at P61, 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.
- 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.
- Neonatal thrombocytopenia due to exchange transfusion
- Neonatal thrombocytopenia due to idiopathic maternal thrombocytopenia
- Neonatal thrombocytopenia due to isoimmunization
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- transient hypogammaglobulinemia of infancy (D80.7)
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 P61.0, its category, or a range that includes it.
Excludes1 2
These codes carry an Excludes1 note naming P61.0: they are not reported together with it, unless the two conditions are unrelated.
Excludes2 1
These codes carry an Excludes2 note naming P61.0: its condition is not part of those codes, and both may be reported when the patient has both.
- Block R70-R79 Abnormal findings on examination of blood, without diagnosis
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Platelet Disorders
Platelets, also known as thrombocytes, are blood cells. They form in your bone marrow, a sponge-like tissue in your bones. Platelets play a major role in blood clotting. Normally, when one of your blood vessels is injured, you start to bleed.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P61.0 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P61.0Overview
What is the ICD-10 code for transient neonatal thrombocytopenia?
The ICD-10-CM code for transient neonatal thrombocytopenia is P61.0 (sometimes written as P610). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is P61.0 (Other perinatal hematological disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report transient neonatal thrombocytopenia on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What MS-DRG does P61.0 group to?
When transient neonatal thrombocytopenia 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 P61.0 a CC or MCC?
CMS lists P61.0 as an MCC (major complication or comorbidity) for FY 2027. 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 28 closely related codes in its exclusion list.
Can P61.0 be reported with D80.7?
Not as a rule. The Excludes1 note at P61, which applies to P61.0, lists "transient hypogammaglobulinemia of infancy (D80.7)". 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).
