Non-Billable / Non-Specific Code
ICD-10-CM Z90 is the diagnosis code for Acquired absence of organs, not elsewhere classified. This code falls under the section "Persons with potential health hazards related to family and personal history and certain conditions influencing health status" within Chapter 21 â Factors influencing health status and contact with health services (Z00-Z99). It is a non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as Z90. They are mutually exclusive:
The following conditions are not included in Z90. If the patient has both, code each condition separately:
Understanding where Z90 sits in the ICD-10-CM classification helps ensure proper coding:
No, Z90 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
Z90 is the ICD-10-CM diagnosis code for "Acquired absence of organs, not elsewhere classified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
Z90 is located in Section Z77-Z99 â "Persons with potential health hazards related to family and personal history and certain conditions influencing health status" within Chapter 21 of the ICD-10-CM Tabular List.
Z90 has 9 sub-code(s) that provide more specific detail: Z90.0, Z90.1, Z90.2, Z90.3, Z90.4 and more.
Use Z90 when the patients documented diagnosis matches "Acquired absence of organs, not elsewhere classified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Acquired absence of organs, not elsewhere classified is Z90.
No, Z90 is non-billable. Use a more specific sub-code for primary diagnosis billing.
Z90 is in Chapter 21 of the ICD-10-CM Tabular List.
Type 1 Excludes for Z90 include: congenital absence - see Alphabetical Index.
Yes, Z90 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.