We all experience headache sometimes when not having enough sleep, more stress, along with any disease or due to unknown cause. The type of headache can vary based on location, severity, frequency and cause. Headache is mainly divided into 4 types – migraine, tension type, hypnic and cluster. We will discuss here about the basic details of ICD 10 Code for migraine and guidelines along with examples.
Migraine is very common and can affect children or adults. It is characterized by throbbing pain usually one side of the head associated with nausea and/or vomiting and sensitivity to light. Sometimes severity of the pain can be very severe and can last for more than 2 days.
Migraine occurs in 4 stages (though not all stages in everyone) – Prodrome, aura, attack, post-drome. Knowing the stages is important in assigning a case specific ICD code.
Physician can diagnose migraine based on history, signs and symptoms. An MRI or CT of brain is done if feels any complications or difficulty to diagnose.
ICD 10 Code for migraine is found in chapter 6 of ICD-10 CM manual – diseases of nervous system, code range G00 – G99
ICD 10 Code for Migraine | Description |
G43.001 – G3.019 | Migraine; without aura |
G43.101 – G3.119 | ; with aura |
G43.401 – G3.419 | ; Hemiplegic |
G43.501 – G3.519 | Persistent with aura without cerebral infarction |
G43.601 – G3.619 | Persistent with aura with cerebral infarction |
G43.701 – G3.719 | Chronic without aura |
G43.801 – G3.839 | Other migraine |
G43.901 – G3.919 | Unspecified migraine |
G43.B0 – G3.B1 | Ophthalmologic migraine |
G43.D0 – G3.D1 | Abnormal migraine |
Below are few examples on coding Migraine.
Sarah, is a 30 year old woman visits the clinic for frequent headache from past 5 months. She is a computer expert and uses computer 12 to 14 hours a day. She feels vision problem and black dots on the screen just before the headache starts. The pain is throbbing at one side of the head. She takes triptan for relief and the pain goes away after few hours. She gets this problem continuously for 4 days. She started taking contraceptive pill from last 2 months. Her headache is worse when taking the pill and gets numbness on hands. Her vitals are normal today. Physical exam findings noted as healthy woman, alert and oriented with bilateral hand swelling. A complete neurological exam was performed which was normal. An MRI of brain was taken today to rule out any abnormalities. This case was diagnosed as migraine with aura.
ICD-10 codes:
G43.109 – Migraine with aura
M79.89 – Hand swelling
Note: Coder should assign “with aura” only if physician diagnosed the same.
A 55 year old male patient came to hospital with a known history of chronic migraine. He gets headache almost every day though he uses medication. He has a history of hypertension and CAD (NSTEMI last year). His medication list includes brilinta, plavix, nitoglycerin, lisinopril and triptan. BP reading showed 135/95 mmHg today. All other vitals are normal. Neurologic exam was normal. Physician suggested starting on onabotulinumtoxinA injection after discussing the case with neurologist. The patient was given referral to neurologist.
ICD-10 codes:
G43.709 – Chronic migraine
I10 – Hypertension
I25.10 – CAD
I25.2 – Old MI
Note: Coded G43.709 (chronic migraine without aura) though not mentioned as with or without aura as there is no specific index entry for migraine chronic directly.
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