ICD-10 code for indeterminate sex

The ICD-10-CM code for indeterminate sex is Q56.4 (Indeterminate sex, unspecified).

Within Q56, choose Q56.4 (Indeterminate sex, unspecified) only when documentation doesn't support a more specific option: Hermaphroditism, not elsewhere classified (Q56.0), male pseudohermaphroditism, not elsewhere classified (Q56.1), female pseudohermaphroditism, not elsewhere classified (Q56.2) and pseudohermaphroditism, unspecified (Q56.3).

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 729 (Other Male Reproductive System Diagnoses with CC/MCC, relative weight 1.0544), DRG 730 (Other Male Reproductive System Diagnoses without CC/MCC, relative weight 0.6597), DRG 742 (Uterine and Adnexa Procedures for Non-Malignancy with CC/MCC, relative weight 1.8456), DRG 743 (Uterine and Adnexa Procedures for Non-Malignancy without CC/MCC, relative weight 1.2974), DRG 760 (Menstrual and Other Female Reproductive System Disorders with CC/MCC, relative weight 1.0129) and DRG 761 (Menstrual and Other Female Reproductive System Disorders without CC/MCC, relative weight 0.7041), in MDC 12 (Diseases and Disorders of the Male Reproductive System) and MDC 13 (Diseases and Disorders of the Female Reproductive System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.