ICD-10-CM Codes
N00-N99 Diseases of the genitourinary system
N60-N65 Disorders of breast
N64- Other disorders of breast
2021 ICD-10-CM Diagnosis Code N64

2021 ICD-10-CM Diagnosis Code N64

Other disorders of breast

2016

2017

2018

2019

2020

2021

Non-Billable/Non-Specific Code

N64 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2021 edition of ICD-10-CM N64 became effective on October 1, 2020.
This is the American ICD-10-CM version of N64 - other international versions of ICD-10 N64 may differ.

Type 2 Excludes

Type 2 Excludes Help

A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (N64) and the excluded code together.

mechanical complication of breast prosthesis and implant (
ICD-10-CM Diagnosis Code T85.4
Mechanical complication of breast prosthesis and implant
T85.4-
)

The following code(s) above N64 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 N64:

N00-N99
2021 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
2021 ICD-10-CM Range N60-N65
Disorders of breast
Type 1 Excludes
- disorders of breast associated with childbirth (O91-O92)
Disorders of breast

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

ICD-10-CM Codes Adjacent To N64

N63.22 …… upper inner quadrant

N63.23 …… lower outer quadrant

N63.24 …… lower inner quadrant

N63.25 …… overlapping quadrants

N63.3 Unspecified lump in axillary tail

N63.31 …… of the right breast

N63.32 …… of the left breast

N63.4 Unspecified lump in breast, subareolar

N63.41 Unspecified lump in right breast, subareolar

N63.42 Unspecified lump in left breast, subareolar

N64 Other disorders of breast

N64.0 Fissure and fistula of nipple

N64.1 Fat necrosis of breast

N64.2 Atrophy of breast

N64.3 Galactorrhea not associated with childbirth

N64.4 Mastodynia

N64.5 Other signs and symptoms in breast

N64.51 Induration of breast

N64.52 Nipple discharge

N64.53 Retraction of nipple

N64.59 Other signs and symptoms in breast

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

2021 ICD-10-CM Diagnosis Code N64

Other disorders of breast

Mechanical complication of breast prosthesis and implant

Diseases of the genitourinary system

Disorders of breast