ICD-10-CM Codes
N00-N99
N60-N65
N65-
2023 ICD-10-CM Diagnosis Code N65.1

2023 ICD-10-CM Diagnosis Code N65.1

Disproportion of reconstructed breast

2016

2017

2018

2019

2020

2021

2022

2023

Billable/Specific Code

Adult Dx (15-124 years)

N65.1 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
The 2023 edition of ICD-10-CM N65.1 became effective on October 1, 2022.
This is the American ICD-10-CM version of N65.1 - other international versions of ICD-10 N65.1 may differ.

ICD-10-CM Coding Rules

N65.1 is applicable to adult patients aged 15 - 124 years inclusive.

Applicable To

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

The following code(s) above N65.1 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to N65.1:

N00-N99
2023 ICD-10-CM Range N00-N99
Diseases of the genitourinary system
Type 2 Excludes
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Diseases of the genitourinary system
N60-N65
2023 ICD-10-CM Range N60-N65
Disorders of breast
Type 1 Excludes
- disorders of breast associated with childbirth (O91-O92)
Disorders of breast

Approximate Synonyms

Disproportion of reconstructed left breast
Disproportion of reconstructed right breast
Left reconstructed breast disproportion
Right reconstructed breast disproportion

ICD-10-CM N65.1 is grouped within Diagnostic Related Group(s) (MS-DRG v40.0):

600 Non-malignant breast disorders with cc/mcc
601 Non-malignant breast disorders without cc/mcc

Convert N65.1 to ICD-9-CM

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

Code annotations containing back-references to N65.1:

Type 1 Excludes: N62
, N64.81
, N64.82
, Z42.1

ICD-10-CM Diagnosis Code N62
Hypertrophy of breast
Applicable To
- Gynecomastia
- Hypertrophy of breast NOS
- Massive pubertal hypertrophy of breast
Type 1 Excludes
- breast engorgement of newborn (P83.4)
- disproportion of reconstructed breast (N65.1)
ICD-10-CM Diagnosis Code N64.81
Ptosis of breast
Type 1 Excludes
- ptosis of native breast in relation to reconstructed breast (N65.1)
ICD-10-CM Diagnosis Code N64.82
Hypoplasia of breast
Applicable To
- Micromastia
Type 1 Excludes
- congenital absence of breast (Q83.0)
- hypoplasia of native breast in relation to reconstructed breast (N65.1)
ICD-10-CM Diagnosis Code Z42.1
Encounter for breast reconstruction following mastectomy
Type 1 Excludes
- deformity and disproportion of reconstructed breast (N65.1-)

Diagnosis Index entries containing back-references to N65.1:

Asymmetry - see also Distortion
- between native and reconstructed breast N65.1
Complication(s) (from) (of)
- reconstructed breast
  - asymmetry between native and reconstructed breast N65.1
  - disproportion between native and reconstructed breast N65.1
Disproportion
- between native and reconstructed breast N65.1

ICD-10-CM Codes Adjacent To N65.1

N64.52 Nipple discharge

N64.53 Retraction of nipple

N64.59 Other signs and symptoms in breast

N64.8 Other specified disorders of breast

N64.81 Ptosis of breast

N64.82 Hypoplasia of breast

N64.89 Other specified disorders of breast

N64.9 Disorder of breast, unspecified

N65 Deformity and disproportion of reconstructed breast

N65.0 Deformity of reconstructed breast

N65.1 Disproportion of reconstructed breast

N70 Salpingitis and oophoritis

N70.0 Acute salpingitis and oophoritis

N70.01 Acute salpingitis

N70.02 Acute oophoritis

N70.03 Acute salpingitis and oophoritis

N70.1 Chronic salpingitis and oophoritis

N70.11 Chronic salpingitis

N70.12 Chronic oophoritis

N70.13 Chronic salpingitis and oophoritis

N70.9 Salpingitis and oophoritis, unspecified

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code N65.1

Disproportion of reconstructed breast

Diseases of the genitourinary system

Disorders of breast

Hypertrophy of breast

Ptosis of breast

Hypoplasia of breast

Encounter for breast reconstruction following mastectomy