2027 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 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 951. 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 the other POA exempt codes in Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99).
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Past pregnancy history of premature delivery
- Past pregnancy history of premature labor
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to Z87.51: its own notes plus those printed at Z87.5, Z87, block Z77-Z99, and Chapter 21. A note printed at a category, block or chapter applies to every code under it.
Excludes1
Not coded here: the excluded code is never reported together with this one, unless the two conditions are unrelated.
- current pregnancy with history of pre-term labor (O09.21-)
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.
Code First
The underlying condition named in the note is sequenced before this code.
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
Notes
General instructions on how these codes are used.
- Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
- (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
- (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name Z87.51, its category, or a range that includes it.
Use Additional Code 1
These codes say to use an additional code from the note, and Z87.51 is one of the codes named.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
personal (of) See Also: History, family (of);
obstetric complications Z87.59
pre-term labor Z87.51
preterm labor Z87.51
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
What is the ICD-10 code for personal history of pre-term labor?
The ICD-10-CM code for personal history of pre-term labor is Z87.51 (sometimes written as Z8751). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
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, 2026 through September 30, 2027.
What MS-DRG does Z87.51 group to?
On inpatient claims, personal history of pre-term labor maps to MS-DRG 951 (other Factors Influencing Health Status), which carries a relative weight of 0.5574. Higher weights mean higher Medicare reimbursement.
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. The code appears in the Persons with potential health hazards related to family and personal history and certain conditions influencing health status (Z77-Z99) range of the CMS exempt list.
