Conventions
General Coding
Combination Codes
Covid-19
First Listed Codes
100

A list of terms and their corresponding code.

 What is the Alphabetic Index?

100

Diagnosis codes are to be used and reported at their highest number of characters available.

What is Level of Detail in Coding?

100

When using one of these codes, an additional code should not be assigned for the symptom.

What is a Combination Code that includes symptoms?

100

Pneumonia, Acute bronchitis, Lower respiratory infection, Acute respiratory distress syndrome, and Acute respiratory failure

What are common respiratory manifestations of COVID-19?

100

These codes  cover situations when the initial treatment of a disease has been performed and the patient requires continued care during the healing or recovery phase, or for the long-term consequences of the disease.

What are Aftercare codes?

200

Characters for categories, subcategories and codes may be either a letter or a number.

What is the Tabular List?

200

The residual effect (condition produced) after the acute phase of an illness or injury has terminated.

What is a sequela?

200

When using one of these combination codes, an additional code should not be assigned for the symptom.

What are Combination codes that include symptoms?

200

These codes are assigned when individuals who previously had COVID-19 and are being seen for follow-up evaluation, and COVID-19 test results are negative.

What are codes Z09 and Z86.19?

200

Codes in this category, Encounter for supervision of normal pregnancy, are always first listed and are not to be used with any other code from the OB chapter.

What is code Z34?

300

This abbreviation in the Alphabetic Index represents “other specified.”

What is NEC?

300

Additional codes for manifestations that are not an integral part of the disease process may also be assigned when the condition does not have a unique code.

What are Syndromes?

300

These are combination codes that include the
substance that was taken as well as the intent.

What are Codes in categories T36-T65?

300

The provider documents "suspected," "possible,"
"probable," or “inconclusive” COVID-19.

What are Signs and symptoms without definitive diagnosis of COVID-19?

300

These codes  are never permitted to be used as first listed or principal diagnosis codes.

What are “In diseases classified elsewhere” codes?

400

A note used to define and/or give examples of the content of a particular category or a block of category codes.

What are Includes Notes?

400

Use of code X36.0- is limited to collapses of man-made structures due to earth surface movements, not due to storm surges directly from a hurricane.

What are Sequencing of External Causes of Morbidity Codes?

400

These codes correspond to the sequence of events regardless of which caused the most serious injury.

What are combination external cause codes?

400

Codes from Chapter 15 always take sequencing priority.

What is COVID-19 infection in pregnancy, childbirth, and the puerperium?

400

These codes are to be first listed, followed by the diagnosis code when a patient’s encounter is solely to
receive radiation therapy, chemotherapy, or immunotherapy for the treatment of a neoplasm.

What are  codes Z51.0, Encounter for antineoplastic radiation therapy, and codes from subcategory
Z51.1, Encounter for antineoplastic chemotherapy and immunotherapy?

500

An alphanumerical list of codes, divided into chapters based on body system (anatomical site) or condition (etiology).

What is the Tabular List of Diseases and Injuries?

500

Used to report encounters when the circumstances surrounding the encounter are for something other than disease or injury.

What are Z Codes?

500

A single code used to classify two diagnoses, a diagnosis with an associated secondary process, or a diagnosis with an associated complication.

What are Combination codes?

500

For a newborn that tests positive for COVID-19 and the provider documents the condition was contracted in utero or during the birth process.

What are codes P35.8, Other congenital viral diseases,and U07.1, COVID-19?

500

These codes are used to indicate the surveillance of a condition that is fully healed and no longer exists.

What are Follow-up codes?

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