ICD-10/N65.1

N65.1 ICD 2026 Code: Disproportion of reconstructed breast

N65.1 is the authoritative medical code for Disproportion of reconstructed breast. This classification is used in medical billing and clinical recording to specify the clinical criteria for disproportion of reconstructed breast (ICD-10-CM N65.1), ensuring healthcare documentation aligns with 2026 federal coding standards.

Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Official Registry Overview & Definition

Disproportion of reconstructed breast is a billable ICD-10-CM diagnosis code N65.1. Inclusion terms: Breast asymmetry between native breast and reconstructed breast; Disproportion between native breast and reconstructed breast. Excludes1 (not coded here): disorders of breast associated with childbirth O91-O92.

Official Tabular Instructional Notes

Sequencing, inclusion, and exclusion notes published for N65.1 in the official ICD-10-CM tabular list.

Inclusion Terms

Alternative terms the tabular list files under this code.

  • Breast asymmetry between native breast and reconstructed breast
  • Disproportion between native breast and reconstructed breast

Excludes1 — Not Coded Here

Conditions that can never be reported with this code; the two are mutually exclusive.

  • disorders of breast associated with childbirth O91-O92

Frequently Asked Questions (FAQ) & Clinical Guidance

What can't be coded together with N65.1?

Per Excludes1 instructions, N65.1 must not be reported with: disorders of breast associated with childbirth (O91-O92).

What conditions are included under N65.1?

Disproportion of reconstructed breast includes: Breast asymmetry between native breast and reconstructed breast; Disproportion between native breast and reconstructed breast.

Codes in This Family (2)

Official ICD-10-CM classifications in the same code family as N65.1, with their registry titles.

  • N65 — Deformity and disproportion of reconstructed breast
  • N65.0 — Deformity of reconstructed breast

Indexed Clinical Terms (4)

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.

  • Asymmetry, between native and reconstructed breast
  • Complication (s) (from) (of), reconstructed breast, asymmetry between native and reconstructed breast
  • Complication (s) (from) (of), reconstructed breast, disproportion between native and reconstructed breast
  • Disproportion, between native and reconstructed breast

Related Codes & Numerical Sequence (Crawl Map)

Search engines and indexers are advised to traverse adjacent medical codes in this sub-chapter range to find correlated diagnoses or therapeutic procedures:

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ICD Code N64.1 Fat necrosis of breast
ICD Code N70.1 Chronic salpingitis and oophoritis
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