ICD-10-CM Codes
G00-G99
G40-G47
G44-
2023 ICD-10-CM Diagnosis Code G44.03

2023 ICD-10-CM Diagnosis Code G44.03

Episodic paroxysmal hemicrania

2016

2017

2018

2019

2020

2021

2022

2023

Non-Billable/Non-Specific Code

G44.03 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
The 2023 edition of ICD-10-CM G44.03 became effective on October 1, 2022.
This is the American ICD-10-CM version of G44.03 - other international versions of ICD-10 G44.03 may differ.

Applicable To

Paroxysmal hemicrania NOS

The following code(s) above G44.03 contain annotation back-references

Annotation Back-References

In this context, annotation back-references refer to codes that contain:

Applicable To annotations, or
Code Also annotations, or
Code First annotations, or
Excludes1 annotations, or
Excludes2 annotations, or
Includes annotations, or
Note annotations, or
Use Additional annotations

that may be applicable to G44.03:

G00-G99
2023 ICD-10-CM Range G00-G99
Diseases of the nervous system
Type 2 Excludes
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Diseases of the nervous system
G44
ICD-10-CM Diagnosis Code G44
Other headache syndromes
Type 1 Excludes
- headache NOS (R51.9)
Type 2 Excludes
- atypical facial pain (G50.1)
- headache due to lumbar puncture (G97.1)
- migraines (G43.-)
- trigeminal neuralgia (G50.0)
Other headache syndromes

Clinical Information

A primary headache disorder that is similar to the cluster headache with unilateral head pain, but differs by its multiple short severe attacks. It is usually seen in females, and may be responsive to non-steroidal-anti-inflammatory drugs (nsaids).

Code History

2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
2017 (effective 10/1/2016): No change
2018 (effective 10/1/2017): No change
2019 (effective 10/1/2018): No change
2020 (effective 10/1/2019): No change
2021 (effective 10/1/2020): No change
2022 (effective 10/1/2021): No change
2023 (effective 10/1/2022): No change

ICD-10-CM Codes Adjacent To G44.03

G44.0 Cluster headaches and other trigeminal autonomic cephalgias (TAC)

G44.00 Cluster headache syndrome, unspecified

G44.001 …… intractable

G44.009 …… not intractable

G44.01 Episodic cluster headache

G44.011 …… intractable

G44.019 …… not intractable

G44.02 Chronic cluster headache

G44.021 …… intractable

G44.029 …… not intractable

G44.03 Episodic paroxysmal hemicrania

G44.031 …… intractable

G44.039 …… not intractable

G44.04 Chronic paroxysmal hemicrania

G44.041 …… intractable

G44.049 …… not intractable

G44.05 Short lasting unilateral neuralgiform headache with conjunctival injection and tearing (SUNCT)

G44.051 …… intractable

G44.059 …… not intractable

G44.09 Other trigeminal autonomic cephalgias (TAC)

G44.091 …… intractable

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.

2023 ICD-10-CM Diagnosis Code G44.03

Episodic paroxysmal hemicrania

Diseases of the nervous system

Other headache syndromes