Wiki 2017 ICD-10 Book

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Code: Z12.31
Encounter for screening mammogram for malignant neoplasm of breast
Excludes 1: inconclusive mammogram (R92.2)
Parent Code Notes: Z12
Excludes1: encounter for diagnostic examination-code to sign or symptom
Use additional code to identify any family history of malignant neoplasm (Z80.-)

Block Notes
Persons encountering health services for examinations (Z00-Z13)
Note: Nonspecific abnormal findings disclosed at the time of these examinations are classified to categories R70-R94.
Excludes 1: examinations related to pregnancy and reproduction (Z30-Z36, Z39.-)

Coding Guidelines
Factors influencing health status and contact with health services (Z00-Z99)
Note: Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
(a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
(b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.


Best answers
We just recently received our AAPC 2017 ICD-10 book. Going through it we noticed the symbol stating "unacceptable principal dx symbol per Medicare code edits". Does this mean we can't use a dx with this sympbol attached as our #1 dx?

Example Low Tension Glaucoma H40.12-

Patients come in with just this issue. Now how do we code it?
Anchorage, Alaska
Best answers
Principal diagnoses

This depends on whether you are coding in-patient or out-patient services. This is not a change for 2017, but the term principal diagnosis has been in ICD for some time. A principal diagnosis is (basically) the primary diagnosis used for in-patient facility coding. For out patient/physician coding ICD uses the term "First-listed" diagnosis. There are different rules/guidelines for in-patient facility coding vs. out-patient services. When you see an instruction that a code is not acceptable for principal diagnosis it does not mean you cannot use it for first-listed diagnosis. If you are not a hospital coder, you can ignore this convention.

Hope that helps,
Karen Hill, CPC, CPB, CPMA, CPC-I


North Myrtle Beach, SC
Best answers
I think this is a printing error, nearly all the Z codes have this symbol, like Z12.31 -screening mammogram, and all the screening codes which should be clearly Primary codes