Steps in

assigning an ICD code to diseases

Assigning a code for a particular disease or diagnosis is done in 3 steps -

Step 1 - Identifying the chapter in which the disease will fall under

Step 2 – Within the identified Chapter, recognizing the block under which the disease will appear​

Step 3 – Once the block is identified, noting down the exact code of the given disease​

Example 1 - What is the code for Migraine?

These 3 steps are explained in the following examples

Step 1 - Migraine comes under Chapter VI: Diseases of nervous system

Step 2 - In this chapter, look at block - "Episodic and paroxysmal disorders​"

Step 3 - Under this block, you will find Migraine with the code G81

The code for Migraine is G81

Example 2 - What is the code for acute pericarditis?

Step 1 - Acute pericarditis comes under Chapter IX: Diseases of cardiovascular system 

Step 2 - In this chapter, look at block – "other forms of heart disease" ​

Step 3 - Under this block, you will find Acute pericarditis with the                     code I30

The code for Acute pericarditis is I30

It is important to become familiar with different ICD chapters, the blocks and codes within those chapters.

 

Further ahead in this unit, multiple examples are given to help you learn more about them.

 

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