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ICD-10-CM 2027

ICD-10 code for fertility preservation procedure encounter

Z31.84

Encounter for fertility preservation procedure

✓ Billable / specificNot a principal dx

From the official ICD-10-CM alphabetic index entry “Encounter (with health service) (for) › fertility preservation procedure (prior to cancer therapy) (prior to removal of gonads)”. Page updated September 29, 2026.

About coding fertility preservation procedure encounter

The ICD-10-CM code for fertility preservation procedure encounter is Z31.84 (Encounter for fertility preservation procedure).

Within Z31.8 (encounter for other procreative management), Z31.84 is specifically for encounter for fertility preservation procedure. Related codes cover male factor infertility in female patient (Z31.81), Rh incompatibility status (Z31.82), assisted reproductive fertility procedure cycle (Z31.83) and other procreative management (Z31.89).

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.

Common questions about fertility preservation procedure encounter ICD-10 codes

What is the ICD-10 code for fertility preservation procedure encounter?

Z31.84 — Encounter for fertility preservation procedure.

Is Z31.84 billable?

Yes. Z31.84 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can Z31.84 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 Z31.84 a CC or MCC?

No. Z31.84 is neither a CC nor an MCC under MS-DRG v44.0.