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Z48.812 vs Z95.1

Z48.812 (Encounter for surgical aftercare following surgery on the circulatory system) compared with Z95.1 (Presence of aortocoronary bypass graft), from the official CMS tabular data.

Summary

No coding relationship between these codes was found in the tabular notes or in MedCoder’s derived relationships.

What is different?

The conditions named.Z48.812 is “Encounter for surgical aftercare following surgery on the circulatory system”; Z95.1 is “Presence of aortocoronary bypass graft”.

Registry fact

Can these codes be reported together?

No instruction prevents it.No note in either entry names the other, and no derived relationship links them. Each may be reported when its own documentation requirements are met.

Registry fact

Is there an Excludes1 relationship?

None.Neither entry carries an Excludes1 note that names the other code. Z48.812 carries 4 Excludes1 notes covering other codes; the side-by-side table quotes them.

Official rule

Is there an Excludes2 relationship?

None.Neither entry carries an Excludes2 note that names the other code. Z48.812 carries 5 Excludes2 notes and Z95.1 carries 1 Excludes2 note covering other codes; the side-by-side table quotes them.

Official rule

Is one more specific?

Not comparable.The codes sit in different categories; specificity is only comparable within one category.

Is one a parent or header code?

No.Both are billable codes, and neither contains the other.

Registry fact

Are there sequencing instructions?

None.Neither entry carries a Code First or Use Additional Code note that names the other.

Official rule

Are there other coding relationships?

None found.No laterality, encounter-phase, Table of Neoplasms, Table of Drugs and Chemicals, or history-versus-active-disease relationship links these codes.

MedCoder-derived

Official rule: a tabular instructional note or a section of the ICD-10-CM Official Guidelines, quoted as published. Registry fact: the codes’ own published attributes (titles, billable status, position in the hierarchy, code set). MedCoder-derived: a reading MedCoder computes from those facts; it is not itself a rule. How to read the labels

Can these codes be reported together?

Yes.

No Excludes1/Excludes2 relationship exists between these codes in the official tabular list. Each may be reported when its own documentation requirements are met.

Side by side

Z48.812Encounter for surgical aftercare following surgery on the circulatory systemZ95.1Presence of aortocoronary bypass graft
Billing statusBillableBillable
ClassificationZ00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99)Z00-Z99 — Factors Influencing Health Status and Contact with Health Services (Z00-Z99)
DefinitionEncounter for surgical aftercare following surgery on the circulatory system is a billable ICD-10-CM diagnosis code (Z48.812).Presence of aortocoronary bypass graft is a billable ICD-10-CM diagnosis code (Z95.1).
Includes
Presence of coronary artery bypass graft
Excludes1
aftercare for injury- code the injury with 7th character D
aftercare following surgery for neoplasm (Z48.3)
encounter for follow-up examination after completed treatment (Z08-Z09)
encounter for aftercare following injury - code to Injury, by site, with appropriate 7th character for subsequent encounter
Excludes2
aftercare following organ transplant (Z48.2-)
orthopedic aftercare (Z47.-)
encounter for attention to artificial openings (Z43.-)
encounter for fitting and adjustment of prosthetic and other devices (Z44-Z46)
follow-up examination for medical surveillance after treatment (Z08-Z09)
complications of cardiac and vascular devices, implants and grafts (T82.-)
Code also
any follow-up examination (Z08-Z09)

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.

Derived from the official CMS ICD-10-CM tabular data (FY2026). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources