ICD-10-CM 2027 diagnosis code
Z31.83Encounter for assisted reproductive fertility procedure cycle
Z31.83 is a valid, billable ICD-10-CM code for encounter for assisted reproductive fertility procedure cycle. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Encounter for assisted reprodctv fertility procedure cycle
Looking up by condition? See ICD-10 code for Harvesting ovum for in vitro fertilization.
Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data
About Z31.83
Z31.83 is the ICD-10-CM diagnosis code for encounter for assisted reproductive fertility procedure cycle. It belongs to category Z31 (encounter for procreative management), block Z30-Z39 (persons encountering health services in circumstances related to reproduction) and chapter 21 (factors influencing health status and contact with health services). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.
Within Z31.8 (encounter for other procreative management), Z31.83 is specifically for encounter for assisted reproductive fertility procedure cycle. Related codes cover male factor infertility in female patient (Z31.81), Rh incompatibility status (Z31.82), fertility preservation procedure (Z31.84) and other procreative management (Z31.89).
Don't report Z31.83 together with the conditions in its Excludes1 note: pre-cycle diagnosis and testing - code to reason for encounter.
Use an additional code to identify the type of infertility.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
It is on the CMS list of diagnoses consistent only with female patients (the sex-conflict edit itself was retired in FY2025).
It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.
It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.
Before ICD-10, this condition was coded in ICD-9-CM as V26.81 (encounter for assisted reproductive fertility procedure cycle).
Coding notes
- Patient undergoing in vitro fertilization cycle
- pre-cycle diagnosis and testing - code to reason for encounter
- code to identify the type of infertility
Notes that apply from higher levels
Instructions written at a parent level also apply to Z31.83.
Broader instructions also apply from Chapter 21: Factors influencing health status and contact with health services.
Alphabetic index entries
3 entriesTerms in the official ICD-10-CM index that lead to Z31.83.
MS-DRG v44.0 grouping
All DRGs →Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.
MDC 23 · Factors Influencing Health Status and Other Contacts with Health Services
ICD-9-CM equivalent
Converter →- V26.81Encounter for assisted reproductive fertility procedure cycleexact
From the CMS 2018 General Equivalence Mappings (GEMs), the final GEMs release.
Code history
- 2016
- 2017
- 2018
- 2019
- 2020
- 2021
- 2022
- 2023
- 2024
- 2025
- 2026
- 2027
- FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
- No changes since FY2016.
Common questions about Z31.83
Is Z31.83 billable?
- Yes. Z31.83 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z31.83 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z31.83 a CC or MCC?
- No. Z31.83 is neither a CC nor an MCC under MS-DRG v44.0.
What DRG does Z31.83 group to?
- Z31.83 is used in the MS-DRG v44.0 logic for MS-DRG 951 (Other Factors Influencing Health Status). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.