Q83
Non-Billable

Congenital malformations of breast

Non-Billable / Non-Specific Code

What is Congenital malformations of breast?

ICD-10-CM Q83 is the diagnosis code for Congenital malformations of breast. This code falls under the section "Other congenital malformations" within Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0). 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.

â„šī¸ Excludes2

Coding Guidelines for Q83

â„šī¸ Type 2 Excludes (Code separately if applicable)

The following conditions are not included in Q83. If the patient has both, code each condition separately:

  • absence of pectoral muscle (Q79.8)
  • hypoplasia of breast (N64.82)
  • micromastia (N64.82)

ICD-10-CM Code Hierarchy

Understanding where Q83 sits in the ICD-10-CM classification helps ensure proper coding:

Sub-Codes 6 entries
Q83.0Congenital absence of breast with absent nippleBillableQ83.1Accessory breastBillableQ83.2Absent nippleBillableQ83.3Accessory nippleBillableQ83.8Other congenital malformations of breastBillableQ83.9Congenital malformation of breast, unspecifiedBillable
Related Codes

Frequently Asked Questions

Is Q83 a billable ICD-10-CM code?

No, Q83 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.

What does Q83 mean?

Q83 is the ICD-10-CM diagnosis code for "Congenital malformations of breast". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.

What section is Q83 in?

Q83 is located in Section Q80-Q89 — "Other congenital malformations" within Chapter 17 of the ICD-10-CM Tabular List.

What are the sub-codes of Q83?

Q83 has 6 sub-code(s) that provide more specific detail: Q83.0, Q83.1, Q83.2, Q83.3, Q83.8 and more.

When should I use Q83?

Use Q83 when the patients documented diagnosis matches "Congenital malformations of breast" 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 Congenital malformations of breast?

The ICD-10-CM code for Congenital malformations of breast is Q83.

Can Q83 be used for primary diagnosis?

No, Q83 is non-billable. Use a more specific sub-code for primary diagnosis billing.

What chapter is Q83 in?

Q83 is in Chapter 17 of the ICD-10-CM Tabular List.

Is Q83 valid for 2026?

Yes, Q83 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.

See Also

← PreviousQ82.9Congenital malformation of skin, unspecifiedNext →Q83.0Congenital absence of breast with absent nipple
Code Details
Q83
Congenital malformations of breast
Non-Billable / Non-Specific Code
17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q80-Q89 — Other congenital malformations
2026 ICD-10-CM