2024 ICD-10 Diagnosis Changes, Part II
September 25, 2023
In last week’s Coffee & Coding, we highlighted two sections of the new ICD-10 codes coming on October 1, which provided an indication of just how extensive the additions are. There were 24 changes to codes for diseases of the nervous system, plus revisions with Excludes 1 and Excludes 2. The additions also expanded the codes for Parkinson’s disease and the connection with dyskinesia and implemented new codes for migraines and epilepsy to address myoclonus epilepsy and refractory migraines. And those were just the changes to Chapter 6. For Chapter 7, covering diseases of the eye and adnexa, we saw new codes added for retinal disorders, other strabismus, visual disturbances and foreign body sensations.
Now let’s take a look at the next three sections of the nearly 400 new codes you’ll need to be prepared to use. Here is a brief overview:
- CMS added 36 new codes to the diseases of the musculoskeletal system and connective tissue (M00-M99) chapter.
- 22 new codes were added, and six were revised in the congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99) chapter.
- 30 new codes were added, and six were invalidated from the factors influencing health status and contact with health services (Z00-Z99) chapter.
New codes for diseases of the musculoskeletal system and connective tissue:
| M32 | Systemic lupus erythematosus (SLE) |
| M32.19 | Other organ or system involvement in systemic lupus erythematosus
Use Additional code(s) to identify organ or system involvement, such as encephalitis (G05.3) |
| M34 | Systemic sclerosis [scleroderma] |
| M34.2 | Systemic sclerosis induced by drug and chemical
Code first Revised to poisoning due to drug or toxin, if applicable (T36-T65 with fifth or sixth character 1-4) |
| M36 | Systemic disorders of connective tissue in diseases classified elsewhere |
| M36.8 | Systemic disorders of connective tissue in other diseases classified elsewhere
Code first alkaptonuria (E70.29) ochronosis (E70.29) |
| M41 | Scoliosis
Excludes2: postprocedural scoliosis (M96.89) postradiation scoliosis (M96.5) |
| M41.1 | Juvenile and adolescent idiopathic scoliosis |
| M41.12 | Adolescent idiopathic Scoliosis |
| M63 | Disorders of muscle in diseases classified elsewhere
Code first neoplasm (C49.-, C79.89, D21.-, D48.1-) Disorders of bone density and structure (M80-M85) |
| M80 | Osteoporosis with current pathological fracture |
| M80.0 | Age-related osteoporosis with current pathological fracture |
| M80.0B | Age-related osteoporosis with current pathological fracture, right pelvis |
| M80.0B1 | Age-related osteoporosis with current pathological fracture, left pelvis Other |
| M80.0B2 | Age-related osteoporosis with current pathological fracture, left pelvis |
| M80.0B9 | Age-related osteoporosis with current pathological fracture, unspecified pelvis |
| M80.8 | Other osteoporosis with current pathological fracture |
| M80.8B | Other osteoporosis with current pathological fracture, pelvis |
| M80.8B1 | Other osteoporosis with current pathological fracture, right pelvis |
| M80.8B2 | Other osteoporosis with current pathological fracture, left pelvis |
| M80.8B9 | Other osteoporosis with current pathological fracture, unspecified pelvis |
| M83 | Adult osteomalacia
Excludes1: vitamin D-resistant osteomalacia (E83.31) vitamin D-resistant rickets (active) (E83.31) Other osteopathies (M86-M90) |
| M89 | Other disorders of bone |
| M89.7 | Major osseous defect
Code first osteolysis (M89.5-) |
| M90 | Osteopathies in diseases classified elsewhere |
| M90.8 | Osteopathy in diseases classified elsewhere
Code first vitamin-D-resistant rickets (E83.31) Periprosthetic fracture around internal prosthetic joint (M97) |
| M97 | Periprosthetic fracture around internal prosthetic joint
Code first, if known, the specific type and cause of fracture, such as traumatic or pathological |
New codes for congenital malformations, deformations, and chromosomal abnormalities:
Congenital malformations of the circulatory system (Q20-Q28)
| Q21 | Congenital malformations of cardiac septa |
| Q21.1 | Atrial septal defect
Excludes2: ostium primum atrial septal defect (type I) (Q21.20) Other congenital malformations of the digestive system (Q38-Q45) |
| Q44 | Congenital malformations of gallbladder, bile ducts and liver |
| Q44.7 | Other congenital malformations of liver
Code also, if applicable, associated malformations affecting other systems |
| Q44.70 | Other congenital malformation of liver, unspecified
Add Congenital malformation of liver, NOS |
| Q44.71 | Alagille syndrome Add Alagille-Watson syndrome |
| Q44.79 | Other congenital malformations of liver
Accessory liver Congenital absence of liver Congenital hepatomegaly Congenital malformations and deformations of the musculoskeletal system (Q65-Q79) |
| Q67 | Congenital musculoskeletal deformities of head, face, spine, and chest |
| Q67.2 | Dolichocephaly
Excludes1: sagittal craniosynostosis (Q75.01) |
| Q67.3 | Plagiocephaly
Excludes1: coronal craniosynostosis (Q75.02-) lambdoid craniosynostosis (Q75.04-) |
| Q75 | Other congenital malformations of skull and face bones |
| Q75 | Other congenital malformations of skull and face bones |
| Q75.0 | Craniosynostosis |
| Q75.00 | Craniosynostosis unspecified
Craniosynostosis NOS |
| Q75.001 | Craniosynostosis unspecified, unilateral |
| Q75.002 | Craniosynostosis unspecified, bilateral |
| Q75.009 | Craniosynostosis unspecified Add Imperfect fusion of skull |
| Q75.01 | Sagittal craniosynostosis
Non-deformational dolichocephaly Non-deformational scaphocephaly Excludes1: plagiocephaly (Q67.3) |
| Q75.02 | Coronal craniosynostosis
Non-deformational anterior plagiocephaly Excludes1: dolichocephaly (Q67.2) |
| Q75.021 | Coronal craniosynostosis unilateral
Non-deformational anterior plagiocephaly |
| Q75.022 | Coronal craniosynostosis bilateral
Non-deformational brachycephaly |
| Q75.029 | Coronal craniosynostosis unspecified |
| Q75.03 | Metopic craniosynostosis
Trigonocephaly |
| Q75.04 | Lambdoid craniosynostosis
Non-deformational posterior plagiocephaly Excludes1: dolichocephaly (Q67.2) |
| Q75.041 | Lambdoid craniosynostosis, unilateral |
| Q75.042 | Lambdoid craniosynostosis, bilateral |
| Q75.049 | Lambdoid craniosynostosis, unspecified |
| Q75.05 | Multi-suture craniosynostosis |
| Q75.051 | Cloverleaf skull Add Kleeblattschaedel skull |
| Q75.052 | Pansynostosis |
| Q75.058 | Other multi-suture craniosynostosis
Excludes1: coronal craniosynostosis, bilateral (Q75.022) lambdoid craniosynostosis, bilateral (Q75.042) |
| Q75.08 | Other single-suture craniosynostosis
Other congenital malformations (Q80-Q89) |
| Q84 | Other congenital malformations of integument |
| Q84.1 | Congenital morphological disturbances of hair, not elsewhere classified
Excludes1: Revise to Menkes’ kinky hair syndrome (E83.09) |
| Q85 | Phakomatoses, not elsewhere classified |
| Q85.8 | Other phakomatoses, not elsewhere classified |
| Q85.81 | PTEN hamartoma tumor syndrome |
| Q87 | Other specified congenital malformation syndromes affecting multiple systems |
| Q87.4 | Marfan syndrome |
| Q87.40 | Marfan syndrome, unspecified |
| Q87.41 | Marfan syndrome with cardiovascular manifestations |
| Q87.410 | Marfan syndrome with aortic dilation |
| Q87.418 | Marfan syndrome with other cardiovascular manifestations |
| Q87.42 | Marfan syndrome with ocular manifestations |
| Q87.43 | Marfan syndrome with skeletal manifestation |
| Q87.8 | Other specified congenital malformation syndromes, not elsewhere classified |
| Q87.83 | Bardet-Biedl syndrome |
| Q87.84 | Laurence-Moon syndrome |
| Q87.85 | MED13L syndrome
Asadollahi-Rauch syndrome Mediator complex subunit 13L syndrome Code also, if applicable, any associated manifestations such as:
|
| Q87.89 | Other specified congenital malformation syndromes, not elsewhere classified
Chromosomal abnormalities, not elsewhere classified (Q90-Q99) |
| Q90 | Down syndrome
Code also associated physical condition(s), such as atrioventricular septal defect(Q21.2-) Use Additional code(s) to identify any associated degree of intellectual disabilities (F70-F79) |
| Q93 | Monosomies and deletions from the autosomes, not elsewhere classified |
| Q93.5 | Other deletions of part of a chromosome |
| Q93.52 | Phelan-McDermid syndrome
22q13.3 deletion syndrome Use Additional code(s) to identify any associated conditions, such as:
|
New codes for Social Determinants of Health (SDOH):
| Z02.8 | Encounter for other administrative examinations |
| Z02.84 | Encounter for child welfare exam
Encounter for child welfare screening exam Excludes2: encounter for examination and observation for alleged child physical abuse (Z04.72) encounter for examination and observation for alleged child rape (Z04.42) |
| Z05.8 | Observation and evaluation of newborn for other specified suspected condition ruled out |
| Z05.81 | Observation and evaluation of newborn for suspected condition related to home physiologic monitoring device ruled out
Encounter for observation of newborn for apnea alarm without findings Encounter for observation of newborn for bradycardia alarm without findings Encounter for observation of newborn for malfunction of home cardiorespiratory monitor Encounter for observation of newborn for non-specific findings home physiologic monitoring device Encounter for observation of newborn for pulse oximeter alarm without findings Excludes1: encounter for observation for suspected conditions related to home physiologic monitoring device ruled out (Z03.83) neonatal bradycardia (P29.12) other newborn apnea (P28.4-) primary sleep apnea of newborn (P28.3-) |
| Z05.89 | Observation and evaluation of newborn for other specified suspected condition ruled out |
| Z16.1 | Resistance to beta lactam antibiotics |
| Z16.13 | Resistance to carbapenem |
| Z22.3 | Carrier of other specified bacterial diseases |
| Z22.34 | Carrier of Acinetobacter baumannii |
| Z22.340 | Carrier of carbapenem-resistant Acinetobacter baumannii |
| Z22.341 | Carrier of carbapenem-sensitive Acinetobacter baumannii |
| Z22.349 | Carrier of Acinetobacter baumannii, unspecified |
Source:ftp.cdc.gov – /pub/Health_Statistics/NCHS/Publications/ICD10CM/2024/
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Michelle Sergei-Casiano
CPC, CFPC, CEMC
Senior Manager, Regulatory and Coding Compliance
coders@calmwatersai.com