Q89.3
Billable

Situs inversus

Billable / Specific Code

What is Situs inversus?

ICD-10-CM Q89.3 is the diagnosis code for Situs inversus. This code falls under the section "Other congenital malformations" within Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.

💡 Inclusions
⛔ Excludes1

Coding Guidelines for Q89.3

✅ This Code Includes

  • Dextrocardia with situs inversus
  • Mirror-image atrial arrangement with situs inversus
  • Situs inversus or transversus abdominalis
  • Situs inversus or transversus thoracis
  • Transposition of abdominal viscera
  • Transposition of thoracic viscera

⛔ Type 1 Excludes (Never code together)

The following conditions should never be coded at the same time as Q89.3. They are mutually exclusive:

  • dextrocardia NOS (Q24.0)

ICD-10-CM Code Hierarchy

Understanding where Q89.3 sits in the ICD-10-CM classification helps ensure proper coding:

Related Codes

Frequently Asked Questions

Is Q89.3 a billable ICD-10-CM code?

Yes, Q89.3 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.

What does Q89.3 mean?

Q89.3 is the ICD-10-CM diagnosis code for "Situs inversus". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What is the parent code of Q89.3?

The parent code of Q89.3 is Q89 ("Other congenital malformations, not elsewhere classified"). Q89.3 provides a more specific classification within this category.

What section is Q89.3 in?

Q89.3 is located in Section Q80-Q89 — "Other congenital malformations" within Chapter 17 of the ICD-10-CM Tabular List.

When should I use Q89.3?

Use Q89.3 when the patients documented diagnosis matches "Situs inversus" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.

People Also Ask

What is the ICD-10 code for Situs inversus?

The ICD-10-CM code for Situs inversus is Q89.3.

Can Q89.3 be used for primary diagnosis?

Yes, Q89.3 can be used as a primary diagnosis code since it is billable and specific.

What chapter is Q89.3 in?

Q89.3 is in Chapter 17 of the ICD-10-CM Tabular List.

What conditions are excluded from Q89.3?

Type 1 Excludes for Q89.3 include: dextrocardia NOS (Q24.0).

Is Q89.3 valid for 2026?

Yes, Q89.3 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousQ89.2Congenital malformations of other endocrine glandsNext →Q89.4Conjoined twins
Code Details
Q89.3
Situs inversus
Billable / Specific Code
17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q80-Q89 — Other congenital malformations
2026 ICD-10-CM