2026 ICD-10-CM Diagnosis Code Z31.83Encounter for assisted reproductive fertility procedure cycle
Z31.83 is a billable ICD-10-CM diagnosis code for encounter for assisted reproductive fertility procedure cycle. 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. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Contraceptive and procreative management.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z31.83.
Present on Admission (POA)Billing
Z31.83 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Patient undergoing in vitro fertilization cycle
Use Additional Code
- code to identify the type of infertility
Type 1 Excludes
- pre-cycle diagnosis and testing - code to reason for encounter
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
The “use additional code” indicates that a secondary code could be used to further specify the patient’s condition. This note is not mandatory and is only used if enough information is available to assign an additional code.
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.
- Harvesting ovum for in vitro fertilization - Z31.83
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Encounter(with health service) (for)
- assisted reproductive fertility procedure cycle
- Encounter(with health service) (for)
- in vitro fertilization cycle
- Harvesting ovum for in vitro fertilization
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Assisted Reproductive Technology
Assisted reproductive technology (ART) is used to treat infertility. It includes fertility treatments that handle both eggs and sperm. It works by removing eggs from the ovaries. The eggs are then mixed with sperm to make embryos. The embryos are then put back in the parent's body.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z31.83 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z31.83Overview
Is Z31.83 (Encounter for other procreative management) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report encounter for assisted reproductive fertility procedure cycle on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can Z31.83 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because encounter for assisted reproductive fertility procedure cycle describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z31.83 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 encounter for assisted reproductive fertility procedure cycle on inpatient claims.
What is the ICD-9 equivalent of Z31.83?
Under the General Equivalence Mappings, encounter for assisted reproductive fertility procedure cycle converts to ICD-9-CM V26.81 (assist repro fertility). The mapping is a direct match.
