2026 ICD-10-CM Diagnosis Code Z87.51Personal history of pre-term labor
Z87.51 is a billable ICD-10-CM diagnosis code for personal history of pre-term labor. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as past pregnancy history of premature delivery. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Personal history of other disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z87.51.
Present on Admission (POA)Billing
Z87.51 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Past pregnancy history of premature delivery
- Past pregnancy history of premature labor
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- current pregnancy with history of pre-term labor O09.21
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- History
- personal (of) - See Also: History, family (of);
- obstetric complications - Z87.59
- pre-term labor - Z87.51
- preterm labor - Z87.51
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- History
- personal (of)
- obstetric complications
- pre-term labor
- History
- personal (of)
- preterm labor
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Childbirth Problems
Childbirth is the process of giving birth to a baby. It includes labor and delivery. Usually everything goes well, but problems can happen. They may cause a risk to the mother, baby, or both. Some of the more common childbirth problems include:
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z87.51 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z87.51Overview
Is Z87.51 a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report personal history of pre-term labor on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can Z87.51 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because personal history of pre-term labor describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z87.51 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for personal history of pre-term labor on inpatient claims.
What is the ICD-9 equivalent of Z87.51?
Under the General Equivalence Mappings, personal history of pre-term labor converts to ICD-9-CM V13.21 (history-pre-term labor). The mapping is a direct match.
